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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
12489 vulnerabilities reference this CWE, most recent first.
GHSA-HHM7-RCC5-4HJC
Vulnerability from github – Published: 2024-11-04 12:32 – Updated: 2024-11-04 12:32Memory corruption while processing IOCTL calls to unmap the buffers.
{
"affected": [],
"aliases": [
"CVE-2024-33033"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-04T10:15:06Z",
"severity": "MODERATE"
},
"details": "Memory corruption while processing IOCTL calls to unmap the buffers.",
"id": "GHSA-hhm7-rcc5-4hjc",
"modified": "2024-11-04T12:32:56Z",
"published": "2024-11-04T12:32:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-33033"
},
{
"type": "WEB",
"url": "https://docs.qualcomm.com/product/publicresources/securitybulletin/november-2024-bulletin.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-HHMJ-863M-GPXG
Vulnerability from github – Published: 2022-05-13 01:33 – Updated: 2022-05-13 01:33This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.2.0.9297. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of the id property of a aliasNode. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-6472.
{
"affected": [],
"aliases": [
"CVE-2018-17636"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-01-24T04:29:00Z",
"severity": "HIGH"
},
"details": "This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.2.0.9297. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of the id property of a aliasNode. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-6472.",
"id": "GHSA-hhmj-863m-gpxg",
"modified": "2022-05-13T01:33:58Z",
"published": "2022-05-13T01:33:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-17636"
},
{
"type": "WEB",
"url": "https://www.foxitsoftware.com/support/security-bulletins.php"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-18-1209"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-HHPQ-9QV7-VGGJ
Vulnerability from github – Published: 2026-10-13 21:34 – Updated: 2026-10-13 21:34Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-70249"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-13T19:19:42Z",
"severity": "HIGH"
},
"details": "Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-hhpq-9qv7-vggj",
"modified": "2026-10-13T21:34:18Z",
"published": "2026-10-13T21:34:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-70249"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70249"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-HHQ7-4GXQ-Q8MP
Vulnerability from github – Published: 2024-02-28 09:30 – Updated: 2024-12-09 21:31In the Linux kernel, the following vulnerability has been resolved:
spi: spi-zynqmp-gqspi: fix use-after-free in zynqmp_qspi_exec_op
When handling op->addr, it is using the buffer "tmpbuf" which has been freed. This will trigger a use-after-free KASAN warning. Let's use temporary variables to store op->addr.val and op->cmd.opcode to fix this issue.
{
"affected": [],
"aliases": [
"CVE-2021-47048"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-28T09:15:40Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: spi-zynqmp-gqspi: fix use-after-free in zynqmp_qspi_exec_op\n\nWhen handling op-\u003eaddr, it is using the buffer \"tmpbuf\" which has been\nfreed. This will trigger a use-after-free KASAN warning. Let\u0027s use\ntemporary variables to store op-\u003eaddr.val and op-\u003ecmd.opcode to fix\nthis issue.",
"id": "GHSA-hhq7-4gxq-q8mp",
"modified": "2024-12-09T21:31:00Z",
"published": "2024-02-28T09:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47048"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1231279389b5e638bc3b66b9741c94077aed4b5a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/23269ac9f123eca3aea7682d3345c02e71ed696c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a2c5bedb2d55dd27c642c7b9fb6886d7ad7bdb58"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d67e0d6bd92ebbb0294e7062bbf5cdc773764e62"
}
],
"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-HHQ9-JVJQ-HFG8
Vulnerability from github – Published: 2026-10-21 00:32 – Updated: 2026-10-21 00:32Use after free in PerformanceAPIs in Google Chrome on on Android prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)
{
"affected": [],
"aliases": [
"CVE-2026-113091"
],
"database_specific": {
"cwe_ids": [
"CWE-200",
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-20T22:19:00Z",
"severity": "HIGH"
},
"details": "Use after free in PerformanceAPIs in Google Chrome on on Android prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)",
"id": "GHSA-hhq9-jvjq-hfg8",
"modified": "2026-10-21T00:32:41Z",
"published": "2026-10-21T00:32:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-113091"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/497433155"
}
],
"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-HHVH-8925-WVQG
Vulnerability from github – Published: 2022-05-24 19:06 – Updated: 2022-05-24 19:06Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by a Use After Free vulnerability when executing search queries through Javascript. An unauthenticated attacker could leverage this vulnerability to achieve 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.
{
"affected": [],
"aliases": [
"CVE-2021-28562"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-06-28T14:15:00Z",
"severity": "HIGH"
},
"details": "Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by a Use After Free vulnerability when executing search queries through Javascript. An unauthenticated attacker could leverage this vulnerability to achieve 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-hhvh-8925-wvqg",
"modified": "2022-05-24T19:06:25Z",
"published": "2022-05-24T19:06:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-28562"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb21-29.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-HHW2-PQHF-VMX2
Vulnerability from github – Published: 2021-08-25 20:49 – Updated: 2025-05-23 18:29An issue was discovered in the actix-utils crate before 2.0.0 for Rust. The Cell implementation allows obtaining more than one mutable reference to the same data.
{
"affected": [
{
"package": {
"ecosystem": "crates.io",
"name": "actix-utils"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-35898"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": true,
"github_reviewed_at": "2021-08-19T20:53:53Z",
"nvd_published_at": null,
"severity": "CRITICAL"
},
"details": "An issue was discovered in the actix-utils crate before 2.0.0 for Rust. The Cell implementation allows obtaining more than one mutable reference to the same data.",
"id": "GHSA-hhw2-pqhf-vmx2",
"modified": "2025-05-23T18:29:56Z",
"published": "2021-08-25T20:49:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35898"
},
{
"type": "WEB",
"url": "https://github.com/actix/actix-net/issues/160"
},
{
"type": "WEB",
"url": "https://github.com/actix/actix-net/commit/0dca1a705ad1ff4885b3491ecb809a808e1de66c"
},
{
"type": "PACKAGE",
"url": "https://github.com/actix/actix-net"
},
{
"type": "WEB",
"url": "https://rustsec.org/advisories/RUSTSEC-2020-0045.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Use after free in actix-utils"
}
GHSA-HHX7-CV5C-345Q
Vulnerability from github – Published: 2026-10-21 00:32 – Updated: 2026-10-21 00:32Use after free in Chrome for iOS in Google Chrome on on iOS prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)
{
"affected": [],
"aliases": [
"CVE-2026-113323"
],
"database_specific": {
"cwe_ids": [
"CWE-416",
"CWE-451"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-20T22:19:26Z",
"severity": "HIGH"
},
"details": "Use after free in Chrome for iOS in Google Chrome on on iOS prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)",
"id": "GHSA-hhx7-cv5c-345q",
"modified": "2026-10-21T00:32:51Z",
"published": "2026-10-21T00:32:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-113323"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/480153486"
}
],
"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-HHXJ-VXV9-CX4F
Vulnerability from github – Published: 2025-08-12 18:31 – Updated: 2025-08-12 18:31Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2025-49761"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-12T18:15:31Z",
"severity": "HIGH"
},
"details": "Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-hhxj-vxv9-cx4f",
"modified": "2025-08-12T18:31:30Z",
"published": "2025-08-12T18:31:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49761"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49761"
}
],
"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-HHXW-RFGX-V568
Vulnerability from github – Published: 2026-10-21 00:32 – Updated: 2026-10-21 00:32Use after free in Extensions in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
{
"affected": [],
"aliases": [
"CVE-2026-113302"
],
"database_specific": {
"cwe_ids": [
"CWE-416",
"CWE-862"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-20T22:19:24Z",
"severity": "HIGH"
},
"details": "Use after free in Extensions in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)",
"id": "GHSA-hhxw-rfgx-v568",
"modified": "2026-10-21T00:32:50Z",
"published": "2026-10-21T00:32:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-113302"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/500491981"
}
],
"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"
}
]
}
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.