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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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
206 results · Clear filters · Feed
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High 8.8CVE-2026-11118 Public exploit
Use after free in WebRTC in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code in…
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High 8.8CVE-2026-11117 Public exploit
Use after free in Views in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker to execute arbitra…
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Critical 9.6CVE-2026-11114 Public exploit
Use after free in Device Trust in Google Chrome on Mac prior to 149.0.7827.53 allowed a remote attacker who had comprom…
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High 8.8CVE-2026-11116 Public exploit
Use after free in Chromoting in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary cod…
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High 7.3CVE-2026-11115 Public exploit
Use after free in Updater in Google Chrome on Windows prior to 149.0.7827.53 allowed a local attacker to perform OS-lev…
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High 8.3CVE-2026-10961 Public exploit
Use after free in Chrome for iOS in Google Chrome on iOS prior to 149.0.7827.53 allowed a remote attacker who had compr…
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High 7.8CVE-2026-46242 Public exploit
eventpoll: fix ep_remove struct eventpoll / struct file UAF
In the Linux kernel, the following vulnerability has been resolved: eventpoll: fix ep_remove struct eventpoll / struct file UAF ep_remove() (via ep_remove_file()) cleared file->f_ep under file->f_lock but then kept using @file inside the critical section (is_…
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High 8.3CVE-2026-9997 Public exploit
Use after free in Input in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the rend…
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Medium 5.4CVE-2026-4390 Public exploit
TeamSpeak 3 Server Connection State Management process_resend_queue use after free
A weakness has been identified in TeamSpeak 3 Server up to 3.13.7. This affects the function process_resend_queue of the component Connection State Management. This manipulation causes use after free. The attack may be initiated remotely. Upgrading to version…
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High 7.8CVE-2026-43499 Public exploit
rtmutex: Use waiter::task instead of current in remove_waiter()
In the Linux kernel, the following vulnerability has been resolved: rtmutex: Use waiter::task instead of current in remove_waiter() remove_waiter() is used by the slowlock paths, but it is also used for proxy-lock rollback in rt_mutex_start_proxy_lock() when …
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Medium 4.8CVE-2026-40701 Public exploit
NGINX ngx_http_ssl_module vulnerability
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssl_module module when the ssl_verify_client directive is set to "on" or "optional," and the ssl_ocsp directive is set to "on" or the leaf parameters are configured with a resolver. With th…
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Critical 9.8CVE-2026-45185 Public exploit
Exim before 4.99.3, in certain GnuTLS configurations, has a remotely reachable use-after-free in the BDAT body parsing …
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High 7.8CVE-2026-43074 Public exploit
eventpoll: defer struct eventpoll free to RCU grace period
In the Linux kernel, the following vulnerability has been resolved: eventpoll: defer struct eventpoll free to RCU grace period In certain situations, ep_free() in eventpoll.c will kfree the epi->ep eventpoll struct while it still being used by another concurr…
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Medium 6.1CVE-2026-23631 Public exploit
redis-server Lua use-after-free may allow remote code execution
Redis is an in-memory data structure store. In all versions of redis-server with Lua scripting, an authenticated attacker can exploit the master-replica synchronization mechanism to trigger a use-after-free on replicas where replica-read-only is disabled or c…
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High 7.7CVE-2026-23479 Public exploit
redis-server use-after-free in unblock client flow may allow remote code execution
Redis is an in-memory data structure store. In redis-server from 7.2.0 until 8.6.3, the unblock client flow does not handle an error return from `processCommandAndResetClient` when re-executing a blocked command. If a blocked client is evicted during this flo…
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High 8.8CVE-2026-6300 Public exploit
Use after free in CSS in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code insi…
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High 7.8CVE-2026-23415 Public exploit
futex: Fix UaF between futex_key_to_node_opt() and vma_replace_policy()
In the Linux kernel, the following vulnerability has been resolved: futex: Fix UaF between futex_key_to_node_opt() and vma_replace_policy() During futex_key_to_node_opt() execution, vma->vm_policy is read under speculative mmap lock and RCU. Concurrently, mbi…
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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 7.1CVE-2026-20687 Public exploit
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.7 and iPadOS 18.7…
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Medium 6.2CVE-2026-20637 Public exploit
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.7 and iPadOS 18.7…
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High 7.8CVE-2026-33150 Public exploit
Use After Free in libfuse
libfuse is the reference implementation of the Linux FUSE. From version 3.18.0 to before version 3.18.2, a use-after-free vulnerability in the io_uring subsystem of libfuse allows a local attacker to crash FUSE filesystem processes and potentially execute arb…
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High 7.5CVE-2026-3805 Public exploit
use after free in SMB connection reuse
When doing a second SMB request to the same host again, curl would wrongly use a data pointer pointing into already freed memory.
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High 7.8CVE-2026-23231 Public exploit
netfilter: nf_tables: fix use-after-free in nf_tables_addchain()
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix use-after-free in nf_tables_addchain() nf_tables_addchain() publishes the chain to table->chains via list_add_tail_rcu() (in nft_chain_add()) before registering hook…
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Critical 9.8CVE-2026-2766 Public exploit
Use-after-free in the JavaScript Engine: JIT component
Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 9.8CVE-2026-2764 Public exploit
JIT miscompilation, use-after-free in the JavaScript Engine: JIT component
JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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Critical 9.8CVE-2026-2763 Public exploit
Use-after-free in the JavaScript Engine component
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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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 7.8CVE-2026-23111 Public exploit
netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate()
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate() nft_map_catchall_activate() has an inverted element activity check compared to its non-catchall counterpart nft…
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High 7.8CVE-2026-23004 Public exploit
dst: fix races in rt6_uncached_list_del() and rt_del_uncached_list()
In the Linux kernel, the following vulnerability has been resolved: dst: fix races in rt6_uncached_list_del() and rt_del_uncached_list() syzbot was able to crash the kernel in rt6_uncached_list_flush_dev() in an interesting way [1] Crash happens in list_del_i…
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High 7.8CVE-2026-23001 Public exploit
macvlan: fix possible UAF in macvlan_forward_source()
In the Linux kernel, the following vulnerability has been resolved: macvlan: fix possible UAF in macvlan_forward_source() Add RCU protection on (struct macvlan_source_entry)->vlan. Whenever macvlan_hash_del_source() is called, we must clear entry->vlan pointe…
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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 8.8CVE-2025-14765 Public exploit
Use after free in WebGPU in Google Chrome prior to 143.0.7499.147 allowed a remote attacker to potentially exploit heap…
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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 -
Critical 9.8CVE-2025-14321 Public exploit
Use-after-free in the WebRTC: Signaling component
Use-after-free in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
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Medium 4.0CVE-2025-8045 Public exploit
Mali GPU Kernel Driver allows improper GPU processing operations
Use After Free vulnerability in Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform improper GPU processing operations to gain access to already freed memory.This issue af…
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High 8.0CVE-2025-48593 Public exploit
In bta_hf_client_cb_init of bta_hf_client_main.cc, there is a possible remote code execution due to a use after free. T…
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Critical 10.0
Redis Lua Use-After-Free may lead to remote code execution
Redis is an open source, in-memory database that persists on disk. Versions 8.2.1 and below allow an authenticated user to use a specially crafted Lua script to manipulate the garbage collector, trigger a use-after-free and potentially lead to remote code exe…
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High 8.8CVE-2025-10200 Public exploit
Use after free in Serviceworker in Google Chrome on Desktop prior to 140.0.7339.127 allowed a remote attacker to potent…
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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 8.0CVE-2023-21125 Public exploit
In btif_hh_hsdata_rpt_copy_cb of bta_hh.cc, there is a possible way to corrupt memory due to a use after free. This cou…