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Common Weakness Enumeration

CWE-191

Allowed

Integer Underflow (Wrap or Wraparound)

Abstraction: Base · Status: Draft

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

735 vulnerabilities reference this CWE, most recent first.

GHSA-82HR-8JW5-CF8X

Vulnerability from github – Published: 2024-11-19 03:31 – Updated: 2025-11-04 00:32
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

media: cx24116: prevent overflows on SNR calculus

as reported by Coverity, if reading SNR registers fail, a negative number will be returned, causing an underflow when reading SNR registers.

Prevent that.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-50290"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-19T02:16:31Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cx24116: prevent overflows on SNR calculus\n\nas reported by Coverity, if reading SNR registers fail, a negative\nnumber will be returned, causing an underflow when reading SNR\nregisters.\n\nPrevent that.",
  "id": "GHSA-82hr-8jw5-cf8x",
  "modified": "2025-11-04T00:32:03Z",
  "published": "2024-11-19T03:31:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50290"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/127b9076baeadd734b18ddc8f2cd93b47d5a3ea3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3a1ed994d9454132354b860321414955da289929"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/576a307a7650bd544fbb24df801b9b7863b85e2f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/828047c70f4716fde4b1316f7b610e97a4e83824"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83c152b55d88cbf6fc4685941fcb31333986774d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cad97ca8cfd43a78a19b59949f33e3563d369247"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f2b4f277c41db8d548f38f1dd091bbdf6a5acb07"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fbefe31e4598cdb0889eee2e74c995b2212efb08"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-85RQ-MQR4-HJW7

Vulnerability from github – Published: 2026-06-11 12:32 – Updated: 2026-06-12 15:30
VLAI
Details

An integer underflow vulnerability was found in MIT krb5 in the berval2tl_data() function in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c. The function performs an unsigned subtraction (bv_len - 2) without a prior bounds check. When bv_len is 0 or 1, the subtraction wraps to a large value which is then truncated to uint16_t, yielding 0xFFFE (65534) or 0xFFFF (65535). The subsequent malloc succeeds and memcpy reads up to 65534 bytes from a 0-1 byte buffer, resulting in a heap out-of-bounds read. The attack vector involves a malicious or compromised LDAP KDB backend returning a krbExtraData attribute with bv_len < 2, triggering the underflow when the KDC or kadmind reads principal data.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-11850"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-11T10:16:21Z",
    "severity": "MODERATE"
  },
  "details": "An integer underflow vulnerability was found in MIT krb5 in the berval2tl_data() function in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c. The function performs an unsigned subtraction (bv_len - 2) without a prior bounds check. When bv_len is 0 or 1, the subtraction wraps to a large value which is then truncated to uint16_t, yielding 0xFFFE (65534) or 0xFFFF (65535). The subsequent malloc succeeds and memcpy reads up to 65534 bytes from a 0-1 byte buffer, resulting in a heap out-of-bounds read.\nThe attack vector involves a malicious or compromised LDAP KDB backend returning a krbExtraData attribute with bv_len \u003c 2, triggering the underflow when the KDC or kadmind reads principal data.",
  "id": "GHSA-85rq-mqr4-hjw7",
  "modified": "2026-06-12T15:30:31Z",
  "published": "2026-06-11T12:32:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11850"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:25520"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-11850"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2459970"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-864V-W6FX-R2G4

Vulnerability from github – Published: 2026-05-12 18:30 – Updated: 2026-05-12 18:30
VLAI
Details

Integer underflow (wrap or wraparound) in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-40397"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-12T18:17:17Z",
    "severity": "HIGH"
  },
  "details": "Integer underflow (wrap or wraparound) in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.",
  "id": "GHSA-864v-w6fx-r2g4",
  "modified": "2026-05-12T18:30:45Z",
  "published": "2026-05-12T18:30:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40397"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40397"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-879M-9J9J-P69X

Vulnerability from github – Published: 2024-09-13 09:30 – Updated: 2024-09-13 09:30
VLAI
Details

Illustrator versions 28.6, 27.9.5 and earlier are affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-41857"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-13T09:15:09Z",
    "severity": "HIGH"
  },
  "details": "Illustrator versions 28.6, 27.9.5 and earlier are affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
  "id": "GHSA-879m-9j9j-p69x",
  "modified": "2024-09-13T09:30:33Z",
  "published": "2024-09-13T09:30:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41857"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/illustrator/apsb24-66.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-87CF-MXJW-FMJH

Vulnerability from github – Published: 2026-06-07 15:31 – Updated: 2026-06-23 15:32
VLAI
Details

Comodo Internet Security's firewall driver Inspect.sys contains an integer underflow in its IPv6 packet parser. The parser decrements an unsigned 64-bit payload-length value (taken from the IPv6 fixed header's payload length field) by the size of each IPv6 extension header without validating it, so a packet whose declared payload length is smaller than the sum of its extension-header lengths underflows the value to a near-maximal 64-bit integer. Because IPv6 parsing occurs before firewall rule enforcement, a remote, unauthenticated attacker can send a single crafted IPv6 packet - even to a host with all ports blocked - to trigger an out-of-bounds read (and, on a separate code path, an oversized memcpy) in the Windows kernel at DISPATCH_LEVEL, crashing the system (BSOD).

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-49494"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-07T13:16:20Z",
    "severity": "HIGH"
  },
  "details": "Comodo Internet Security\u0027s firewall driver Inspect.sys contains an integer underflow in its IPv6 packet parser. The parser decrements an unsigned 64-bit payload-length value (taken from the IPv6 fixed header\u0027s payload length field) by the size of each IPv6 extension header without validating it, so a packet whose declared payload length is smaller than the sum of its extension-header lengths underflows the value to a near-maximal 64-bit integer. Because IPv6 parsing occurs before firewall rule enforcement, a remote, unauthenticated attacker can send a single crafted IPv6 packet - even to a host with all ports blocked - to trigger an out-of-bounds read (and, on a separate code path, an oversized memcpy) in the Windows kernel at DISPATCH_LEVEL, crashing the system (BSOD).",
  "id": "GHSA-87cf-mxjw-fmjh",
  "modified": "2026-06-23T15:32:30Z",
  "published": "2026-06-07T15:31:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49494"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MalwareTech/ComoDoS"
    },
    {
      "type": "WEB",
      "url": "https://malwaretech.com/2026/06/exploiting-a-remote-kernel-vulnerability-in-comodo-internet-security.html"
    },
    {
      "type": "WEB",
      "url": "https://updates.xcitium.com/#note11312"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/comodo-internet-security-inspect-sys-ipv6-integer-underflow-remote-denial-of-service"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/xcitium-client-security-comodo-internet-security-remote-dos"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-882H-FF2X-F86Q

Vulnerability from github – Published: 2024-11-22 21:32 – Updated: 2025-02-15 03:31
VLAI
Details

7-Zip Zstandard Decompression Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.

The specific flaw exists within the implementation of Zstandard decompression. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-24346.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-11477"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-22T21:15:08Z",
    "severity": "HIGH"
  },
  "details": "7-Zip Zstandard Decompression Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.\n\nThe specific flaw exists within the implementation of Zstandard decompression. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-24346.",
  "id": "GHSA-882h-ff2x-f86q",
  "modified": "2025-02-15T03:31:24Z",
  "published": "2024-11-22T21:32:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-11477"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20250214-0007"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1532"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-886P-7GMF-J6GR

Vulnerability from github – Published: 2025-04-02 15:31 – Updated: 2025-11-03 21:33
VLAI
Details

An integer underflow vulnerability exists in the HTTP server PUT request functionality of STMicroelectronics X-CUBE-AZRTOS-WL 2.0.0. A specially crafted network packet can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability affects the NetX Duo Component HTTP Server implementation which can be found in x-cube-azrtos-f7\Middlewares\ST\netxduo\addons\http\nxd_http_server.c

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-50597"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-02T14:15:44Z",
    "severity": "MODERATE"
  },
  "details": "An integer underflow vulnerability exists in the HTTP server PUT request functionality of STMicroelectronics X-CUBE-AZRTOS-WL 2.0.0. A specially crafted network packet can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability affects the NetX Duo Component HTTP Server implementation which can be found in x-cube-azrtos-f7\\Middlewares\\ST\\netxduo\\addons\\http\\nxd_http_server.c",
  "id": "GHSA-886p-7gmf-j6gr",
  "modified": "2025-11-03T21:33:29Z",
  "published": "2025-04-02T15:31:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50597"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2024-2103"
    },
    {
      "type": "WEB",
      "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-2103"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-88W6-Q5J8-VRRR

Vulnerability from github – Published: 2022-05-02 03:43 – Updated: 2022-05-02 03:43
VLAI
Details

Integer underflow in filter/ww8/ww8par2.cxx in OpenOffice.org (OOo) before 3.2 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted sprmTDefTable table property modifier in a Word document.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2009-3301"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2010-02-16T19:30:00Z",
    "severity": "HIGH"
  },
  "details": "Integer underflow in filter/ww8/ww8par2.cxx in OpenOffice.org (OOo) before 3.2 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted sprmTDefTable table property modifier in a Word document.",
  "id": "GHSA-88w6-q5j8-vrrr",
  "modified": "2022-05-02T03:43:49Z",
  "published": "2022-05-02T03:43:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2009-3301"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=533038"
    },
    {
      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/56240"
    },
    {
      "type": "WEB",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10423"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00005.html"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/38567"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/38568"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/38695"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/38921"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/41818"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/60799"
    },
    {
      "type": "WEB",
      "url": "http://securitytracker.com/id?1023591"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2010/dsa-1995"
    },
    {
      "type": "WEB",
      "url": "http://www.gentoo.org/security/en/glsa/glsa-201408-19.xml"
    },
    {
      "type": "WEB",
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2010:221"
    },
    {
      "type": "WEB",
      "url": "http://www.openoffice.org/security/bulletin.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openoffice.org/security/cves/CVE-2009-3301-3302.html"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/topics/security/cpuoct2010-175626.html"
    },
    {
      "type": "WEB",
      "url": "http://www.redhat.com/support/errata/RHSA-2010-0101.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/38218"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-903-1"
    },
    {
      "type": "WEB",
      "url": "http://www.us-cert.gov/cas/techalerts/TA10-287A.html"
    },
    {
      "type": "WEB",
      "url": "http://www.vupen.com/english/advisories/2010/0366"
    },
    {
      "type": "WEB",
      "url": "http://www.vupen.com/english/advisories/2010/0635"
    },
    {
      "type": "WEB",
      "url": "http://www.vupen.com/english/advisories/2010/2905"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-895H-4XX6-R95P

Vulnerability from github – Published: 2026-04-24 15:32 – Updated: 2026-04-27 15:30
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

tipc: fix bc_ackers underflow on duplicate GRP_ACK_MSG

The GRP_ACK_MSG handler in tipc_group_proto_rcv() currently decrements bc_ackers on every inbound group ACK, even when the same member has already acknowledged the current broadcast round.

Because bc_ackers is a u16, a duplicate ACK received after the last legitimate ACK wraps the counter to 65535. Once wrapped, tipc_group_bc_cong() keeps reporting congestion and later group broadcasts on the affected socket stay blocked until the group is recreated.

Fix this by ignoring duplicate or stale ACKs before touching bc_acked or bc_ackers. This makes repeated GRP_ACK_MSG handling idempotent and prevents the underflow path.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-31662"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-24T15:16:45Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: fix bc_ackers underflow on duplicate GRP_ACK_MSG\n\nThe GRP_ACK_MSG handler in tipc_group_proto_rcv() currently decrements\nbc_ackers on every inbound group ACK, even when the same member has\nalready acknowledged the current broadcast round.\n\nBecause bc_ackers is a u16, a duplicate ACK received after the last\nlegitimate ACK wraps the counter to 65535. Once wrapped,\ntipc_group_bc_cong() keeps reporting congestion and later group\nbroadcasts on the affected socket stay blocked until the group is\nrecreated.\n\nFix this by ignoring duplicate or stale ACKs before touching bc_acked or\nbc_ackers. This makes repeated GRP_ACK_MSG handling idempotent and\nprevents the underflow path.",
  "id": "GHSA-895h-4xx6-r95p",
  "modified": "2026-04-27T15:30:46Z",
  "published": "2026-04-24T15:32:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31662"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1b6f13f626665cac67ba5a012765427680518711"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36ec4fdd6250dcd5e73eb09ea92ed92e9cc28412"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3bcf7aca63f0bcd679ae28e9b99823c608e59ce3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/48a5fe38772b6f039522469ee6131a67838221a8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/575faea557f1a184a5f09661bd47ebd3ef3769f8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a2ea1ef0167d7a84730638d05c20ccdc421b14b6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a7db57ccca21f5801609065473c89a38229ecb92"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0bb732eaf77f9ac2f2638bdac9e39b81e0a9682"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8FJX-P4XG-VGP8

Vulnerability from github – Published: 2026-08-05 21:31 – Updated: 2026-08-05 21:31
VLAI
Details

An integer underflow was found in the popt library when formatting help text for option tables that exceed the terminal width. A local user who can cause an application to print help under those conditions may cause that application to crash or fail to display help, resulting in a denial of service of the affected application.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-18839"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-05T21:16:57Z",
    "severity": "LOW"
  },
  "details": "An integer underflow was found in the popt library when formatting help text for option tables that exceed the terminal width. A local user who can cause an application to print help under those conditions may cause that application to crash or fail to display help, resulting in a denial of service of the affected application.",
  "id": "GHSA-8fjx-p4xg-vgp8",
  "modified": "2026-08-05T21:31:39Z",
  "published": "2026-08-05T21:31:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18839"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-18839"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511010"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

No mitigation information available for this CWE.

No CAPEC attack patterns related to this CWE.