Common Weakness Enumeration
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9814 vulnerabilities reference this CWE, most recent first.
GHSA-PVHV-2W8W-PF3X
Vulnerability from github – Published: 2024-12-12 03:33 – Updated: 2024-12-12 03:33
VLAI
Details
Windows Remote Desktop Services Remote Code Execution Vulnerability
Severity
8.1 (High)
{
"affected": [],
"aliases": [
"CVE-2024-49106"
],
"database_specific": {
"cwe_ids": [
"CWE-362",
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-12T02:04:36Z",
"severity": "HIGH"
},
"details": "Windows Remote Desktop Services Remote Code Execution Vulnerability",
"id": "GHSA-pvhv-2w8w-pf3x",
"modified": "2024-12-12T03:33:05Z",
"published": "2024-12-12T03:33:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49106"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49106"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-PVJ3-F5V8-HGXH
Vulnerability from github – Published: 2025-02-27 03:34 – Updated: 2025-02-27 18:31
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
ipv6: mcast: extend RCU protection in igmp6_send()
igmp6_send() can be called without RTNL or RCU being held.
Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF.
Note that we no longer can use sock_alloc_send_skb() because ipv6.igmp_sk uses GFP_KERNEL allocations which can sleep.
Instead use alloc_skb() and charge the net->ipv6.igmp_sk socket under RCU protection.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-21759"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-27T03:15:16Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: mcast: extend RCU protection in igmp6_send()\n\nigmp6_send() can be called without RTNL or RCU being held.\n\nExtend RCU protection so that we can safely fetch the net pointer\nand avoid a potential UAF.\n\nNote that we no longer can use sock_alloc_send_skb() because\nipv6.igmp_sk uses GFP_KERNEL allocations which can sleep.\n\nInstead use alloc_skb() and charge the net-\u003eipv6.igmp_sk\nsocket under RCU protection.",
"id": "GHSA-pvj3-f5v8-hgxh",
"modified": "2025-02-27T18:31:10Z",
"published": "2025-02-27T03:34:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21759"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/087c1faa594fa07a66933d750c0b2610aa1a2946"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0bf8e2f3768629d437a32cb824149e6e98254381"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/81b25a07ebf53f9ef4ca8f3d96a8ddb94561dd5a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8e92d6a413feaf968a33f0b439ecf27404407458"
}
],
"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-PVJ6-VG6C-45W3
Vulnerability from github – Published: 2022-05-17 02:24 – Updated: 2022-05-17 02:24
VLAI
Details
Use-after-free vulnerability in libiberty allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted binary, related to "ktypevec."
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2016-4488"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-02-24T20:59:00Z",
"severity": "MODERATE"
},
"details": "Use-after-free vulnerability in libiberty allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted binary, related to \"ktypevec.\"",
"id": "GHSA-pvj6-vg6c-45w3",
"modified": "2022-05-17T02:24:42Z",
"published": "2022-05-17T02:24:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-4488"
},
{
"type": "WEB",
"url": "https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70481"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/05/05/5"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/90025"
}
],
"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-PVQ4-RQFR-RC8R
Vulnerability from github – Published: 2025-02-25 21:31 – Updated: 2025-02-25 21:31
VLAI
Details
Use after free in some Zoom Workplace Apps and SDKs may allow an authenticated user to conduct a denial of service via network access.
Severity
4.3 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-27246"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-25T21:15:15Z",
"severity": "MODERATE"
},
"details": "Use after free in some Zoom Workplace Apps and SDKs may allow an authenticated user to conduct a denial of service via network access.",
"id": "GHSA-pvq4-rqfr-rc8r",
"modified": "2025-02-25T21:31:45Z",
"published": "2025-02-25T21:31:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27246"
},
{
"type": "WEB",
"url": "https://www.zoom.com/en/trust/security-bulletin/zsb-24017"
}
],
"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-PVV4-XCGC-R7XW
Vulnerability from github – Published: 2022-05-24 17:12 – Updated: 2022-05-24 17:12
VLAI
Details
Use after free in audio in Google Chrome prior to 80.0.3987.149 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2020-6429"
],
"database_specific": {
"cwe_ids": [
"CWE-416",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-03-23T16:15:00Z",
"severity": "HIGH"
},
"details": "Use after free in audio in Google Chrome prior to 80.0.3987.149 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-pvv4-xcgc-r7xw",
"modified": "2022-05-24T17:12:15Z",
"published": "2022-05-24T17:12:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6429"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2020/03/stable-channel-update-for-desktop_18.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1057627"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2DDNOAGIX5D77TTHT6YPMVJ5WTXTCQEI"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JWANFIR3PYAL5RJQ4AO3ZS2DYMSF2ZGZ"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202003-53"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2020/dsa-4645"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00028.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00037.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-PVW5-CVP6-CV92
Vulnerability from github – Published: 2023-08-22 21:30 – Updated: 2023-12-08 03:30
VLAI
Details
A use-after-free exists in Python through 3.9 via heappushpop in heapq.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2022-48560"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-22T19:16:31Z",
"severity": "HIGH"
},
"details": "A use-after-free exists in Python through 3.9 via heappushpop in heapq.",
"id": "GHSA-pvw5-cvp6-cv92",
"modified": "2023-12-08T03:30:34Z",
"published": "2023-08-22T21:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48560"
},
{
"type": "WEB",
"url": "https://bugs.python.org/issue39421"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00022.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00017.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JZ5OOBWNYWXFTZDMCGHJVGDLDTHLWITJ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VO7Y2YZSDK3UYJD2KBGLXRTGNG6T326J"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20230929-0008"
}
],
"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-PVW6-XMPP-3H64
Vulnerability from github – Published: 2024-07-16 15:30 – Updated: 2024-07-23 15:31
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
net: arc_emac: Fix use after free in arc_mdio_probe()
If bus->state is equal to MDIOBUS_ALLOCATED, mdiobus_free(bus) will free the "bus". But bus->name is still used in the next line, which will lead to a use after free.
We can fix it by putting the name in a local variable and make the bus->name point to the rodata section "name",then use the name in the error message without referring to bus to avoid the uaf.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-48854"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-16T13:15:12Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: arc_emac: Fix use after free in arc_mdio_probe()\n\nIf bus-\u003estate is equal to MDIOBUS_ALLOCATED, mdiobus_free(bus) will free\nthe \"bus\". But bus-\u003ename is still used in the next line, which will lead\nto a use after free.\n\nWe can fix it by putting the name in a local variable and make the\nbus-\u003ename point to the rodata section \"name\",then use the name in the\nerror message without referring to bus to avoid the uaf.",
"id": "GHSA-pvw6-xmpp-3h64",
"modified": "2024-07-23T15:31:08Z",
"published": "2024-07-16T15:30:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48854"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/84c831803785c2c3bec5c28c0e8a0b72f6b41d4d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bc0e610a6eb0d46e4123fafdbe5e6141d9fff3be"
}
],
"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-PVW8-76H2-7Q32
Vulnerability from github – Published: 2022-11-23 15:30 – Updated: 2022-11-28 03:30
VLAI
Details
There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_connect and l2cap_le_connect_req functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth. A remote attacker could execute code leaking kernel memory via Bluetooth if within proximity of the victim. We recommend upgrading past commit https://www.google.com/url https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4 https://www.google.com/url
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-42896"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-11-23T15:15:00Z",
"severity": "HIGH"
},
"details": "There are use-after-free vulnerabilities in the Linux kernel\u0027s net/bluetooth/l2cap_core.c\u0027s l2cap_connect and l2cap_le_connect_req functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth. A remote attacker could execute code leaking kernel memory via Bluetooth if within proximity of the victim. We recommend upgrading past commit https://www.google.com/url https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4 https://www.google.com/url",
"id": "GHSA-pvw8-76h2-7q32",
"modified": "2022-11-28T03:30:18Z",
"published": "2022-11-23T15:30:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42896"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4"
},
{
"type": "WEB",
"url": "https://kernel.dance/#711f8c3fb3db61897080468586b970c87c61d9e4"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-PW39-C9GH-Q6GR
Vulnerability from github – Published: 2025-05-13 18:30 – Updated: 2025-05-13 18:30
VLAI
Details
Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-29978"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-13T17:15:58Z",
"severity": "HIGH"
},
"details": "Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.",
"id": "GHSA-pw39-c9gh-q6gr",
"modified": "2025-05-13T18:30:56Z",
"published": "2025-05-13T18:30:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-29978"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29978"
}
],
"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-PW3P-VW67-4FJF
Vulnerability from github – Published: 2022-05-24 17:18 – Updated: 2022-10-06 00:00
VLAI
Details
Use after free in media in Google Chrome prior to 83.0.4103.61 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
Severity
9.6 (Critical)
{
"affected": [],
"aliases": [
"CVE-2020-6466"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-05-21T04:15:00Z",
"severity": "MODERATE"
},
"details": "Use after free in media in Google Chrome prior to 83.0.4103.61 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.",
"id": "GHSA-pw3p-vw67-4fjf",
"modified": "2022-10-06T00:00:46Z",
"published": "2022-05-24T17:18:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6466"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2020/05/stable-channel-update-for-desktop_19.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1074706"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OQYH5OK7O4BU6E37WWG5SEEHV65BFSGR"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WLFZ5N4EK6I4ZJP5YSKLLVN3ELXEB4XT"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202006-02"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2020/dsa-4714"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00034.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00038.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Architecture and Design
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Implementation
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.