Weakness (CWE)
CWE-416: Use After Free
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
How to prevent it (2 mitigations)
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Architecture and Design
Choose a language that provides automatic memory management.
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Implementation
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.
Source: MITRE CWE-416
107 results · Clear filters · Feed
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High 8.8
Use after free in XML in Google Chrome prior to 157.0.8103.50 allowed a remote attacker to execute arbitrary code insid…
KEV Nov 10, 2026 -
Critical 9.2
RCE via stale global state
PHP has various global state that temporarily points into request memory. In some scenarios, global state may not be correctly reset, or may be repopulated after being reset. The global state may then refer to request memory even after it has been freed. Subs…
KEV Oct 26, 2026 -
Critical 9.2
RCE via OOM corruption
PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The s…
KEV Oct 26, 2026 -
High 7.0
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
KEV Aug 11, 2026 -
High 8.8
Use after free in Dawn in Google Chrome prior to 146.0.7680.178 allowed a remote attacker who had compromised the rende…
KEV Apr 1, 2026 -
High 8.8
Use after free in CSS in Google Chrome prior to 145.0.7632.75 allowed a remote attacker to execute arbitrary code insid…
KEV Feb 17, 2026 -
High 8.8
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.2, iOS 18.7.3 an…
KEV Dec 15, 2025 -
High 7.8
Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
KEV Dec 9, 2025 -
High 8.8CVE-2023-43000 Exploited
A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16…
KEV Mar 5, 2026 -
High 8.8
In multiple locations, there is a possible way to escape chrome sandbox to attack android system_server due to a use af…
KEV Sep 4, 2025 -
High 7.5CVE-2025-27038 Exploited
Use After Free in Graphics
Memory corruption while rendering graphics using Adreno GPU drivers in Chrome.
KEV Jun 3, 2025 -
High 7.8
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Null pointer dereference in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
KEV May 13, 2025 -
High 7.8CVE-2025-32701 Exploited
Windows Common Log File System Driver Elevation of Privilege Vulnerability
Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
KEV May 13, 2025 -
High 7.8
Microsoft DWM Core Library Elevation of Privilege Vulnerability
Use after free in Windows DWM allows an authorized attacker to elevate privileges locally.
KEV May 13, 2025 -
High 7.8
Windows Common Log File System Driver Elevation of Privilege Vulnerability
Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
KEV Apr 8, 2025 -
High 7.0CVE-2025-24983 Exploited
Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
KEV Mar 11, 2025 -
Critical 10.0
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3, …
KEV Jan 29, 2025 -
High 7.8CVE-2025-21334 Exploited
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
KEV Jan 14, 2025 -
High 7.8CVE-2025-21335 Exploited
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
KEV Jan 14, 2025 -
Critical 9.8
An attacker was able to achieve code execution in the content process by exploiting a use-after-free in Animation timel…
KEV Oct 15, 2024 -
High 7.8CVE-2024-43047 Exploited
Use After Free in DSP Service
Memory corruption while maintaining memory maps of HLOS memory.
KEV Oct 8, 2024 -
High 7.8CVE-2024-38107 Exploited
Windows Power Dependency Coordinator Elevation of Privilege Vulnerability
Windows Power Dependency Coordinator Elevation of Privilege Vulnerability
KEV Aug 13, 2024 -
High 7.8
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
KEV Aug 13, 2024 -
High 7.8
net: fix __dst_negative_advice() race
In the Linux kernel, the following vulnerability has been resolved: net: fix __dst_negative_advice() race __dst_negative_advice() does not enforce proper RCU rules when sk->dst_cache must be cleared, leading to possible UAF. RCU rules are that we must first c…
KEV Aug 7, 2024 -
High 7.4CVE-2024-4610 Exploited
Mali GPU Kernel Driver allows improper GPU memory processing operations
Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver allows a local non-privileged user to make improper GPU memory processing operations to gain access to already freed memory.This issue affects Bifrost GPU Ker…
KEV Jun 12, 2024 -
Critical 9.6CVE-2024-4671 Exploited
Use after free in Visuals in Google Chrome prior to 124.0.6367.201 allowed a remote attacker who had compromised the re…
KEV May 13, 2024 -
High 7.8
Use-after-free in Linux kernel's netfilter: nf_tables component
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slo…
KEV May 30, 2024 -
High 7.8
A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 17 and iPadOS 17, iOS …
KEV Mar 5, 2026 -
Medium 5.3
It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-…
KEV Jun 26, 2024 -
High 7.8CVE-2023-33063 Exploited
Use After Free in DSP Services
Memory corruption in DSP Services during a remote call from HLOS to DSP.
KEV Dec 5, 2023 -
Medium 5.5CVE-2023-4211 Exploited
Mali GPU Kernel Driver Allows Improper GPU Memory Processing Operations
A local non-privileged user can make improper GPU memory processing operations to gain access to already freed memory.
KEV Oct 3, 2023 -
High 7.8
Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
KEV Sep 12, 2023 -
High 8.8
A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, tvOS 16.5, ma…
KEV May 22, 2023 -
High 7.8
Win32k Elevation of Privilege Vulnerability
Win32k Elevation of Privilege Vulnerability
KEV May 9, 2023 -
High 8.8
A use after free issue was addressed with improved memory management. This issue is fixed in Safari 16.4.1, iOS 15.7.5 …
KEV Apr 10, 2023 -
High 7.9
Use after free in SNDRV_CTL_IOCTL_ELEM in Linux Kernel
A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. …
KEV Mar 30, 2023 -
High 7.8
Adobe Acrobat Reader DC resetForm Use-After-Free Remote Code Execution Vulnerability
Adobe Acrobat Reader versions 22.003.20282 (and earlier), 22.003.20281 (and earlier) and 20.005.30418 (and earlier) are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation o…
KEV Oct 10, 2023 -
High 8.8
Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability
Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability
KEV Jan 10, 2023 -
High 8.8
Removing an XSLT parameter during processing could have lead to an exploitable use-after-free. We have had reports of a…
KEV Mar 7, 2022 -
Critical 9.6CVE-2022-26486 Exploited
An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape. We hav…
KEV Mar 7, 2022