RHSA-2026:36633

Vulnerability from csaf_redhat - Published: 2026-07-08 09:19 - Updated: 2026-08-03 10:36
Summary
Red Hat Security Advisory: xorg-x11-server-Xwayland security update
Severity
Important
Notes
Topic: An update for xorg-x11-server-Xwayland is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Xwayland is an X server for running X clients under Wayland. Security Fix(es): * xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libXfont2 name length mismatch (CVE-2026-50256) * xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free in miSyncDestroyFence() (CVE-2026-50257) * xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in XKB key types due to unchecked shift levels (CVE-2026-50258) * xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in XKB SetMap request via mapWidths indexing (CVE-2026-50259) * xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free in FreeCounter() (CVE-2026-50260) * xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free in SyncChangeCounter() (CVE-2026-50261) * xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: out-of-bounds read/write in GLX ChangeDrawableAttributes (CVE-2026-50262) * xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free information disclosure in CreateSaverWindow() (CVE-2026-50263) * xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: out-of-bounds heap write in DRI2 DRIGetBuffers/DRIGetBuffersWithFormat (CVE-2026-50264) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2026-50256

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer overflow during font alias resolution. The server allocates a 256 byte stack buffer but libXfont2's alias target name length is 1024 bytes. A font alias name between 257 and 1023 bytes causes the X server to copy that name into the undersized stack buffer without further checks. This may be used to crash the server, or for privilege escalation if the X server runs as root.

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-121 - Stack-based Buffer Overflow
Affected products
Product Identifier Version Remediation
Unresolved product id: AppStream-9.2.0.Z.E4S:xorg-x11-server-Xwayland-0:21.1.3-10.el9_2.1.aarch64 —
Vendor Fix fix
Unresolved product id: AppStream-9.2.0.Z.E4S:xorg-x11-server-Xwayland-0:21.1.3-10.el9_2.1.ppc64le —
Vendor Fix fix
Unresolved product id: AppStream-9.2.0.Z.E4S:xorg-x11-server-Xwayland-0:21.1.3-10.el9_2.1.s390x —
Vendor Fix fix
Unresolved product id: AppStream-9.2.0.Z.E4S:xorg-x11-server-Xwayland-0:21.1.3-10.el9_2.1.src —
Vendor Fix fix
Unresolved product id: AppStream-9.2.0.Z.E4S:xorg-x11-server-Xwayland-0:21.1.3-10.el9_2.1.x86_64 —
Vendor Fix fix
Unresolved product id: AppStream-9.2.0.Z.E4S:xorg-x11-server-Xwayland-debuginfo-0:21.1.3-10.el9_2.1.aarch64 —
Vendor Fix fix
Unresolved product id: AppStream-9.2.0.Z.E4S:xorg-x11-server-Xwayland-debuginfo-0:21.1.3-10.el9_2.1.ppc64le —
Vendor Fix fix
Unresolved product id: AppStream-9.2.0.Z.E4S:xorg-x11-server-Xwayland-debuginfo-0:21.1.3-10.el9_2.1.s390x —
Vendor Fix fix
Unresolved product id: AppStream-9.2.0.Z.E4S:xorg-x11-server-Xwayland-debuginfo-0:21.1.3-10.el9_2.1.x86_64 —
Vendor Fix fix
Unresolved product id: AppStream-9.2.0.Z.E4S:xorg-x11-server-Xwayland-debugsource-0:21.1.3-10.el9_2.1.aarch64 —
Vendor Fix fix
Unresolved product id: AppStream-9.2.0.Z.E4S:xorg-x11-server-Xwayland-debugsource-0:21.1.3-10.el9_2.1.ppc64le —
Vendor Fix fix
Unresolved product id: AppStream-9.2.0.Z.E4S:xorg-x11-server-Xwayland-debugsource-0:21.1.3-10.el9_2.1.s390x —
Vendor Fix fix
Unresolved product id: AppStream-9.2.0.Z.E4S:xorg-x11-server-Xwayland-debugsource-0:21.1.3-10.el9_2.1.x86_64 —
Vendor Fix fix
Threats
Impact Important
CVE-2026-50257

A use-after-free flaw was found in the X.Org X server and Xwayland in miSyncDestroyFence(). A client that sets up multiple fence triggers can trigger a use-after-free function pointer call. An attacker would connect to the X server to set up a fence and await that fence, then a second X connection destroys the fence, causing the use-after-free. This may be used to crash the server, or for privilege escalation if the X server runs as root.

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 - Use After Free
Affected products
Fixed 13 products, the same list as for CVE-2026-50256
Threats
Impact Important
CVE-2026-50258

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. The X server has multiple stack buffers sized XkbMaxShiftLevel * XkbNumKbdGroups but CheckKeyTypes() does not verify or clamp non-canonical key types to XkbMaxShiftLevel. A client can change key types to excessive shift levels and trigger stack overflows. This is caused by an incomplete fix of CVE-2025-26597. This may be used to crash the server, or for privilege escalation if the X server runs as root.

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-121 - Stack-based Buffer Overflow
Affected products
Fixed 13 products, the same list as for CVE-2026-50256
Threats
Impact Important
CVE-2026-50259

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. _XkbSetMapChecks() declares a fixed-size stack buffer mapWidths[256] indexed by key type index. The helper function CheckKeyTypes() writes to this buffer at a client-controlled offset, allowing a stack buffer overflow. This may be used to crash the server, or for privilege escalation if the X server runs as root.

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-121 - Stack-based Buffer Overflow
Affected products
Fixed 13 products, the same list as for CVE-2026-50256
Threats
Impact Important
CVE-2026-50260

A use-after-free flaw was found in the X.Org X server and Xwayland in FreeCounter(). A client that sets up multiple SyncCounters and awaits on those triggers can trigger a use-after-free when destroying those counters via a second client connection. This may be used to crash the server, or for privilege escalation if the X server runs as root.

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 - Use After Free
Affected products
Fixed 13 products, the same list as for CVE-2026-50256
Threats
Impact Important
CVE-2026-50261

A use-after-free flaw was found in the X.Org X server and Xwayland in SyncChangeCounter(). A client that sets up multiple SyncCounters can trigger a use-after-free when destroying those counters via a second client connection while changing those counters. This may be used to crash the server, or for privilege escalation if the X server runs as root.

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 - Use After Free
Affected products
Fixed 13 products, the same list as for CVE-2026-50256
Threats
Impact Important
CVE-2026-50262

An out-of-bounds read flaw was found in the X.Org X server and Xwayland in __glXDisp_ChangeDrawableAttributes(). A wrong size validation check can read a client-controlled number of bytes, exceeding the request buffer, leading to information disclosure. A write path also exists but requires byte-swapped clients which is disabled by default.

5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE-125 - Out-of-bounds Read
Affected products
Fixed 13 products, the same list as for CVE-2026-50256
Threats
Impact Moderate
CVE-2026-50263

A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow(). A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure.

5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE-416 - Use After Free
Affected products
Fixed 13 products, the same list as for CVE-2026-50256
Threats
Impact Moderate
CVE-2026-50264

An out-of-bounds write flaw was found in the X.Org X server and Xwayland in DRIGetBuffers/DRIGetBuffersWithFormat. A client that requests multiple DRI2BufferBackLeft attachments and one DRI2BufferFrontLeft can trigger an out-of-bounds heap write. This may be used to crash the server, or for privilege escalation if the X server runs as root.

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-787 - Out-of-bounds Write
Affected products
Fixed 13 products, the same list as for CVE-2026-50256
Threats
Impact Important
References
URL Category
https://access.redhat.com/errata/RHSA-2026:36633 self
https://access.redhat.com/security/updates/classi… external
https://bugzilla.redhat.com/show_bug.cgi?id=2485380 external
https://bugzilla.redhat.com/show_bug.cgi?id=2485382 external
https://bugzilla.redhat.com/show_bug.cgi?id=2485383 external
https://bugzilla.redhat.com/show_bug.cgi?id=2485384 external
https://bugzilla.redhat.com/show_bug.cgi?id=2485385 external
https://bugzilla.redhat.com/show_bug.cgi?id=2485386 external
https://bugzilla.redhat.com/show_bug.cgi?id=2485387 external
https://bugzilla.redhat.com/show_bug.cgi?id=2485388 external
https://bugzilla.redhat.com/show_bug.cgi?id=2485389 external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2026-50256 self
https://bugzilla.redhat.com/show_bug.cgi?id=2485380 external
https://www.cve.org/CVERecord?id=CVE-2026-50256 external
https://nvd.nist.gov/vuln/detail/CVE-2026-50256 external
https://gitlab.freedesktop.org/xorg/xserver/-/com… external
https://lists.x.org/archives/xorg-announce/2026-J… external
https://redhat.atlassian.net/browse/PSIRTSUPT-16950 external
https://access.redhat.com/security/cve/CVE-2026-50257 self
https://bugzilla.redhat.com/show_bug.cgi?id=2485382 external
https://www.cve.org/CVERecord?id=CVE-2026-50257 external
https://nvd.nist.gov/vuln/detail/CVE-2026-50257 external
https://gitlab.freedesktop.org/xorg/xserver/-/com… external
https://access.redhat.com/security/cve/CVE-2026-50258 self
https://bugzilla.redhat.com/show_bug.cgi?id=2485383 external
https://www.cve.org/CVERecord?id=CVE-2026-50258 external
https://nvd.nist.gov/vuln/detail/CVE-2026-50258 external
https://gitlab.freedesktop.org/xorg/xserver/-/com… external
https://access.redhat.com/security/cve/CVE-2026-50259 self
https://bugzilla.redhat.com/show_bug.cgi?id=2485384 external
https://www.cve.org/CVERecord?id=CVE-2026-50259 external
https://nvd.nist.gov/vuln/detail/CVE-2026-50259 external
https://gitlab.freedesktop.org/xorg/xserver/-/com… external
https://access.redhat.com/security/cve/CVE-2026-50260 self
https://bugzilla.redhat.com/show_bug.cgi?id=2485385 external
https://www.cve.org/CVERecord?id=CVE-2026-50260 external
https://nvd.nist.gov/vuln/detail/CVE-2026-50260 external
https://access.redhat.com/security/cve/CVE-2026-50261 self
https://bugzilla.redhat.com/show_bug.cgi?id=2485386 external
https://www.cve.org/CVERecord?id=CVE-2026-50261 external
https://nvd.nist.gov/vuln/detail/CVE-2026-50261 external
https://gitlab.freedesktop.org/xorg/xserver/-/com… external
https://access.redhat.com/security/cve/CVE-2026-50262 self
https://bugzilla.redhat.com/show_bug.cgi?id=2485387 external
https://www.cve.org/CVERecord?id=CVE-2026-50262 external
https://nvd.nist.gov/vuln/detail/CVE-2026-50262 external
https://gitlab.freedesktop.org/xorg/xserver/-/com… external
https://access.redhat.com/security/cve/CVE-2026-50263 self
https://bugzilla.redhat.com/show_bug.cgi?id=2485388 external
https://www.cve.org/CVERecord?id=CVE-2026-50263 external
https://nvd.nist.gov/vuln/detail/CVE-2026-50263 external
https://gitlab.freedesktop.org/xorg/xserver/-/com… external
https://access.redhat.com/security/cve/CVE-2026-50264 self
https://bugzilla.redhat.com/show_bug.cgi?id=2485389 external
https://www.cve.org/CVERecord?id=CVE-2026-50264 external
https://nvd.nist.gov/vuln/detail/CVE-2026-50264 external
https://gitlab.freedesktop.org/xorg/xserver/-/com… external
Acknowledgments
Trend Micro Zero Day Initiative Anonymous
Red Hat Peter Hutterer
To clipboard 

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          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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      "title": "xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libXfont2 name length mismatch"
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          "title": "Vulnerability description"
        },
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          "text": "xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free in miSyncDestroyFence()",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
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          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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        },
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      "title": "xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in XKB key types due to unchecked shift levels"
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          "title": "Vulnerability description"
        },
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          "title": "Vulnerability summary"
        },
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          "title": "Statement"
        },
        {
          "category": "general",
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        {
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          "title": "Vulnerability description"
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          "text": "xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free in SyncChangeCounter()",
          "title": "Vulnerability summary"
        },
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          "title": "Statement"
        },
        {
          "category": "general",
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        {
          "names": [
            "Anonymous"
          ],
          "organization": "Trend Micro Zero Day Initiative",
          "summary": "Acknowledged by upstream."
        }
      ],
      "cve": "CVE-2026-50263",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
      },
      "discovery_date": "2026-05-15T03:14:46+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2485388"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow(). A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free information disclosure in CreateSaverWindow()",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat rates this issue as Moderate impact. In xorg-x11-server and xorg-x11-server-Xwayland, a local X client can trigger a use-after-free read in CreateSaverWindow() by changing window attributes and forcing the screen saver, leaking server memory to the client. Any local user who can connect to the X server display can attempt exploitation. Upstream fixed this in xorg-server 21.1.23 and xwayland 24.1.12.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-50263"
        },
        {
          "category": "external",
          "summary": "RHBZ#2485388",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2485388"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-50263",
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        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-50263",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50263"
        },
        {
          "category": "external",
          "summary": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/ecc634f1b2f7aa473d3a267eada98c4918bf9e05",
          "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/ecc634f1b2f7aa473d3a267eada98c4918bf9e05"
        },
        {
          "category": "external",
          "summary": "https://lists.x.org/archives/xorg-announce/2026-June/003702.html",
          "url": "https://lists.x.org/archives/xorg-announce/2026-June/003702.html"
        },
        {
          "category": "external",
          "summary": "https://redhat.atlassian.net/browse/PSIRTSUPT-16950",
          "url": "https://redhat.atlassian.net/browse/PSIRTSUPT-16950"
        }
      ],
      "release_date": "2026-06-02T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-08T09:19:08+00:00",
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          },
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        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
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            "AppStream-9.2.0.Z.E4S:xorg-x11-server-Xwayland-debugsource-0:21.1.3-10.el9_2.1.x86_64"
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free information disclosure in CreateSaverWindow()"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Peter Hutterer"
          ],
          "organization": "Red Hat",
          "summary": "This issue was discovered by Red Hat."
        }
      ],
      "cve": "CVE-2026-50264",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "discovery_date": "2026-05-15T03:14:46+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2485389"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An out-of-bounds write flaw was found in the X.Org X server and Xwayland in DRIGetBuffers/DRIGetBuffersWithFormat. A client that requests multiple DRI2BufferBackLeft attachments and one DRI2BufferFrontLeft can trigger an out-of-bounds heap write. This may be used to crash the server, or for privilege escalation if the X server runs as root.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: out-of-bounds heap write in DRI2 DRIGetBuffers/DRIGetBuffersWithFormat",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat rates this issue as Important impact. In xorg-x11-server and xorg-x11-server-Xwayland, a local X client that requests multiple DRI2BufferBackLeft attachments together with DRI2BufferFrontLeft can trigger an out-of-bounds heap write in DRIGetBuffers/DRIGetBuffersWithFormat. Any local user with X display access can trigger this. It may crash the server or, where the X server runs with elevated privileges, could contribute to local privilege escalation. Upstream fixed this in xorg-server 21.1.23 and xwayland 24.1.12.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-50264"
        },
        {
          "category": "external",
          "summary": "RHBZ#2485389",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2485389"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-50264",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-50264"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-50264",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50264"
        },
        {
          "category": "external",
          "summary": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/339c279514326134b0878fc23ce6e9520440ce7f",
          "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/339c279514326134b0878fc23ce6e9520440ce7f"
        },
        {
          "category": "external",
          "summary": "https://lists.x.org/archives/xorg-announce/2026-June/003702.html",
          "url": "https://lists.x.org/archives/xorg-announce/2026-June/003702.html"
        },
        {
          "category": "external",
          "summary": "https://redhat.atlassian.net/browse/PSIRTSUPT-16950",
          "url": "https://redhat.atlassian.net/browse/PSIRTSUPT-16950"
        }
      ],
      "release_date": "2026-06-02T00:00:00+00:00",
      "remediations": [
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          "category": "vendor_fix",
          "date": "2026-07-08T09:19:08+00:00",
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            "attackVector": "LOCAL",
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            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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            "AppStream-9.2.0.Z.E4S:xorg-x11-server-Xwayland-debugsource-0:21.1.3-10.el9_2.1.ppc64le",
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: out-of-bounds heap write in DRI2 DRIGetBuffers/DRIGetBuffersWithFormat"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.