CWE-416
AllowedUse After Free
Abstraction: Variant · Status: Stable
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9986 vulnerabilities reference this CWE, most recent first.
GHSA-R6HJ-459Q-H63H
Vulnerability from github – Published: 2022-05-24 16:58 – Updated: 2022-06-03 00:00ESXi, Workstation, Fusion, VMRC and Horizon Client contain a use-after-free vulnerability in the virtual sound device. VMware has evaluated the severity of this issue to be in the Important severity range with a maximum CVSSv3 base score of 8.5.
{
"affected": [],
"aliases": [
"CVE-2019-5527"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-10-10T17:15:00Z",
"severity": "HIGH"
},
"details": "ESXi, Workstation, Fusion, VMRC and Horizon Client contain a use-after-free vulnerability in the virtual sound device. VMware has evaluated the severity of this issue to be in the Important severity range with a maximum CVSSv3 base score of 8.5.",
"id": "GHSA-r6hj-459q-h63h",
"modified": "2022-06-03T00:00:39Z",
"published": "2022-05-24T16:58:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5527"
},
{
"type": "WEB",
"url": "https://www.vmware.com/security/advisories/VMSA-2019-0014.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-R6Q4-GXV3-V7Q7
Vulnerability from github – Published: 2022-05-24 16:47 – Updated: 2024-04-04 00:53VMware Workstation (15.x before 15.1.0) contains a use-after-free vulnerability in the Advanced Linux Sound Architecture (ALSA) backend. A malicious user with normal user privileges on the guest machine may exploit this issue in conjunction with other issues to execute code on the Linux host where Workstation is installed.
{
"affected": [],
"aliases": [
"CVE-2019-5525"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-06-06T19:29:00Z",
"severity": "HIGH"
},
"details": "VMware Workstation (15.x before 15.1.0) contains a use-after-free vulnerability in the Advanced Linux Sound Architecture (ALSA) backend. A malicious user with normal user privileges on the guest machine may exploit this issue in conjunction with other issues to execute code on the Linux host where Workstation is installed.",
"id": "GHSA-r6q4-gxv3-v7q7",
"modified": "2024-04-04T00:53:41Z",
"published": "2022-05-24T16:47:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5525"
},
{
"type": "WEB",
"url": "https://www.vmware.com/security/advisories/VMSA-2019-0009.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/108674"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-R6R2-GVCM-979J
Vulnerability from github – Published: 2022-05-24 17:43 – Updated: 2022-05-24 17:43A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
{
"affected": [],
"aliases": [
"CVE-2020-25632"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-03-03T17:15:00Z",
"severity": "HIGH"
},
"details": "A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
"id": "GHSA-r6r2-gvcm-979j",
"modified": "2022-05-24T17:43:31Z",
"published": "2022-05-24T17:43:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25632"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1879577"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202104-05"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20220325-0001"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-R6WX-GH72-C6Q5
Vulnerability from github – Published: 2025-07-03 09:30 – Updated: 2025-11-20 21:30In the Linux kernel, the following vulnerability has been resolved:
dm: fix dm_blk_report_zones
If dm_get_live_table() returned NULL, dm_put_live_table() was never called. Also, it is possible that md->zone_revalidate_map will change while calling this function. Only read it once, so that we are always using the same value. Otherwise we might miss a call to dm_put_live_table().
Finally, while md->zone_revalidate_map is set and a process is calling blk_revalidate_disk_zones() to set up the zone append emulation resources, it is possible that another process, perhaps triggered by blkdev_report_zones_ioctl(), will call dm_blk_report_zones(). If blk_revalidate_disk_zones() fails, these resources can be freed while the other process is still using them, causing a use-after-free error.
blk_revalidate_disk_zones() will only ever be called when initially setting up the zone append emulation resources, such as when setting up a zoned dm-crypt table for the first time. Further table swaps will not set md->zone_revalidate_map or call blk_revalidate_disk_zones(). However it must be called using the new table (referenced by md->zone_revalidate_map) and the new queue limits while the DM device is suspended. dm_blk_report_zones() needs some way to distinguish between a call from blk_revalidate_disk_zones(), which must be allowed to use md->zone_revalidate_map to access this not yet activated table, and all other calls to dm_blk_report_zones(), which should not be allowed while the device is suspended and cannot use md->zone_revalidate_map, since the zone resources might be freed by the process currently calling blk_revalidate_disk_zones().
Solve this by tracking the process that sets md->zone_revalidate_map in dm_revalidate_zones() and only allowing that process to make use of it in dm_blk_report_zones().
{
"affected": [],
"aliases": [
"CVE-2025-38141"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-03T09:15:28Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm: fix dm_blk_report_zones\n\nIf dm_get_live_table() returned NULL, dm_put_live_table() was never\ncalled. Also, it is possible that md-\u003ezone_revalidate_map will change\nwhile calling this function. Only read it once, so that we are always\nusing the same value. Otherwise we might miss a call to\ndm_put_live_table().\n\nFinally, while md-\u003ezone_revalidate_map is set and a process is calling\nblk_revalidate_disk_zones() to set up the zone append emulation\nresources, it is possible that another process, perhaps triggered by\nblkdev_report_zones_ioctl(), will call dm_blk_report_zones(). If\nblk_revalidate_disk_zones() fails, these resources can be freed while\nthe other process is still using them, causing a use-after-free error.\n\nblk_revalidate_disk_zones() will only ever be called when initially\nsetting up the zone append emulation resources, such as when setting up\na zoned dm-crypt table for the first time. Further table swaps will not\nset md-\u003ezone_revalidate_map or call blk_revalidate_disk_zones().\nHowever it must be called using the new table (referenced by\nmd-\u003ezone_revalidate_map) and the new queue limits while the DM device is\nsuspended. dm_blk_report_zones() needs some way to distinguish between a\ncall from blk_revalidate_disk_zones(), which must be allowed to use\nmd-\u003ezone_revalidate_map to access this not yet activated table, and all\nother calls to dm_blk_report_zones(), which should not be allowed while\nthe device is suspended and cannot use md-\u003ezone_revalidate_map, since\nthe zone resources might be freed by the process currently calling\nblk_revalidate_disk_zones().\n\nSolve this by tracking the process that sets md-\u003ezone_revalidate_map in\ndm_revalidate_zones() and only allowing that process to make use of it\nin dm_blk_report_zones().",
"id": "GHSA-r6wx-gh72-c6q5",
"modified": "2025-11-20T21:30:29Z",
"published": "2025-07-03T09:30:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38141"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/37f53a2c60d03743e0eacf7a0c01c279776fef4e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d19bc1b4dd5f322980b1f05f79b2ea4f0db10920"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f9c1bdf24615303d48a2d0fd629c88f3189563aa"
}
],
"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-R6XF-37W8-P5J6
Vulnerability from github – Published: 2026-03-25 03:31 – Updated: 2026-03-25 15:31A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash.
{
"affected": [],
"aliases": [
"CVE-2026-28879"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-25T01:17:11Z",
"severity": "MODERATE"
},
"details": "A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash.",
"id": "GHSA-r6xf-37w8-p5j6",
"modified": "2026-03-25T15:31:28Z",
"published": "2026-03-25T03:31:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28879"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/126792"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/126793"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/126794"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/126795"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/126796"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/126797"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/126798"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/126799"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-R72J-MF7H-2CGH
Vulnerability from github – Published: 2022-05-13 01:31 – Updated: 2022-05-13 01:31Rockwell Automation Arena versions 15.10.00 and prior contains a use after free vulnerability caused by processing specially crafted Arena Simulation Software files that may cause the software application to crash, potentially losing any unsaved data..
{
"affected": [],
"aliases": [
"CVE-2018-8843"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-05-14T18:29:00Z",
"severity": "MODERATE"
},
"details": "Rockwell Automation Arena versions 15.10.00 and prior contains a use after free vulnerability caused by processing specially crafted Arena Simulation Software files that may cause the software application to crash, potentially losing any unsaved data..",
"id": "GHSA-r72j-mf7h-2cgh",
"modified": "2022-05-13T01:31:49Z",
"published": "2022-05-13T01:31:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-8843"
},
{
"type": "WEB",
"url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-130-02"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/104166"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-R737-66Q7-488X
Vulnerability from github – Published: 2022-09-07 00:01 – Updated: 2025-11-03 21:30Use After Free in GitHub repository vim/vim prior to 9.0.0388.
{
"affected": [],
"aliases": [
"CVE-2022-3134"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-06T20:15:00Z",
"severity": "HIGH"
},
"details": "Use After Free in GitHub repository vim/vim prior to 9.0.0388.",
"id": "GHSA-r737-66q7-488x",
"modified": "2025-11-03T21:30:42Z",
"published": "2022-09-07T00:01:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3134"
},
{
"type": "WEB",
"url": "https://github.com/vim/vim/commit/ccfde4d028e891a41e3548323c3d47b06fb0b83e"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/6ec79e49-c7ab-4cd6-a517-e7934c2eb9dc"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00023.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202305-16"
}
],
"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-R74X-HG5R-C58J
Vulnerability from github – Published: 2022-05-13 01:24 – Updated: 2022-05-13 01:24Use-after-free vulnerability in the ListenerManager implementation in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 and 17.x before 17.0.2, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code via vectors involving the triggering of garbage collection after memory allocation for listener objects.
{
"affected": [],
"aliases": [
"CVE-2013-0754"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2013-01-13T20:55:00Z",
"severity": "HIGH"
},
"details": "Use-after-free vulnerability in the ListenerManager implementation in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 and 17.x before 17.0.2, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code via vectors involving the triggering of garbage collection after memory allocation for listener objects.",
"id": "GHSA-r74x-hg5r-c58j",
"modified": "2022-05-13T01:24:37Z",
"published": "2022-05-13T01:24:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-0754"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=814026"
},
{
"type": "WEB",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16812"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00006.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00007.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00010.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00017.html"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2013-0144.html"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2013-0145.html"
},
{
"type": "WEB",
"url": "http://www.mozilla.org/security/announce/2013/mfsa2013-17.html"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1681-1"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1681-2"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1681-4"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-R783-X675-FGWX
Vulnerability from github – Published: 2023-08-22 21:30 – Updated: 2024-04-04 07:06dpic 2021.01.01 has a Heap Use-After-Free in thedeletestringbox() function in dpic.y.
{
"affected": [],
"aliases": [
"CVE-2021-32421"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-22T19:16:20Z",
"severity": "HIGH"
},
"details": "dpic 2021.01.01 has a Heap Use-After-Free in thedeletestringbox() function in dpic.y.",
"id": "GHSA-r783-x675-fgwx",
"modified": "2024-04-04T07:06:30Z",
"published": "2023-08-22T21:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-32421"
},
{
"type": "WEB",
"url": "https://gitlab.com/aplevich/dpic/-/commit/d317e4066c17f9ceb359b3af13264c32f6fb43cf"
},
{
"type": "WEB",
"url": "https://gitlab.com/aplevich/dpic/-/issues/7"
}
],
"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-R784-VWQV-W29W
Vulnerability from github – Published: 2022-05-13 01:02 – Updated: 2022-05-13 01:02An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software Foxit PDF Reader version 9.0.1.1049. A specially crafted PDF document can trigger a previously freed object in memory to be reused resulting in arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.
{
"affected": [],
"aliases": [
"CVE-2018-3853"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-06-04T20:29:00Z",
"severity": "HIGH"
},
"details": "An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software Foxit PDF Reader version 9.0.1.1049. A specially crafted PDF document can trigger a previously freed object in memory to be reused resulting in arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.",
"id": "GHSA-r784-vwqv-w29w",
"modified": "2022-05-13T01:02:07Z",
"published": "2022-05-13T01:02:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-3853"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0536"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/103942"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1040733"
}
],
"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"
}
]
}
Mitigation
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Strategy: Attack Surface Reduction
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
No CAPEC attack patterns related to this CWE.