CWE-667
Improper Locking
Description
The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.
Hierarchy (View 1000)
Related attack patterns (CAPEC)
CAPEC-25 · CAPEC-26 · CAPEC-27
CVEs mapped to this weakness (725)
page 1 of 37| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2025-22077 | Cri | 0.64 | 9.8 | 0.00 | Apr 16, 2025 | In the Linux kernel, the following vulnerability has been resolved: Revert "smb: client: fix TCP timers deadlock after rmmod" This reverts commit e9f2517a3e18a54a3943c098d2226b245d488801. Commit e9f2517a3e18 ("smb: client: fix TCP timers deadlock after rmmod") is intended to… | ||
| CVE-2021-47587 | Cri | 0.64 | 9.8 | 0.01 | Jun 19, 2024 | In the Linux kernel, the following vulnerability has been resolved: net: systemport: Add global locking for descriptor lifecycle The descriptor list is a shared resource across all of the transmit queues, and the locking mechanism used today only protects concurrency across a… | ||
| CVE-2019-5886 | Cri | 0.64 | 9.8 | 0.01 | Jan 10, 2019 | An issue was discovered in ShopXO 1.2.0. In the application\install\controller\Index.php file, there is no validation lock file in the Add method, which allows an attacker to reinstall the database. The attacker can write arbitrary code to database.php during system… | ||
| CVE-2025-43510 | Hig | 0.63 | 7.8 | 0.00 | KEV | Dec 12, 2025 | A memory corruption issue was addressed with improved lock state checking. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious application… | |
| CVE-2021-1782 | Hig | 0.58 | 7.0 | 0.02 | KEV | Apr 2, 2021 | A race condition was addressed with improved locking. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious application may be able to elevate privileges. Apple… | |
| CVE-2026-54906 | Cri | 0.57 | 9.8 | 0.00 | Jun 24, 2026 | concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::ReadWriteLock#release_write_lock does not verify that the calling thread acquired the write lock. Any thread with access to the lock object can release an active write lock held by another… | ||
| CVE-2026-53049 | Cri | 0.57 | 9.8 | 0.00 | Jun 24, 2026 | In the Linux kernel, the following vulnerability has been resolved: gfs2: add some missing log locking Function gfs2_logd() calls the log flushing functions gfs2_ail1_start(), gfs2_ail1_wait(), and gfs2_ail1_empty() without holding sdp->sd_log_flush_lock, but these functions… | ||
| CVE-2025-38643 | Hig | 0.57 | 8.8 | 0.00 | Aug 22, 2025 | In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac() Callers of wdev_chandef() must hold the wiphy mutex. But the worker cfg80211_propagate_cac_done_wk() never takes the lock. Which triggers the… | ||
| CVE-2025-22012 | Hig | 0.57 | 8.8 | 0.00 | Apr 8, 2025 | In the Linux kernel, the following vulnerability has been resolved: Revert "arm64: dts: qcom: sdm845: Affirm IDR0.CCTW on apps_smmu" There are reports that the pagetable walker cache coherency is not a given across the spectrum of SDM845/850 devices, leading to lock-ups and… | ||
| CVE-2024-58087 | Cri | 0.57 | 9.8 | 0.00 | Mar 12, 2025 | In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix racy issue from session lookup and expire Increment the session reference count within the lock for lookup to avoid racy issue with session expire. | ||
| CVE-2020-15674 | Hig | 0.57 | 8.8 | 0.01 | Oct 1, 2020 | Mozilla developers reported memory safety bugs present in Firefox 80. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 81. | ||
| CVE-2020-0303 | Hig | 0.57 | 8.8 | 0.01 | Sep 17, 2020 | In the Media extractor, there is a possible use after free due to improper locking. This could lead to remote code execution in the media extractor with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions:… | ||
| CVE-2021-1622 | Hig | 0.56 | 8.6 | 0.01 | Sep 23, 2021 | A vulnerability in the Common Open Policy Service (COPS) of Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to cause resource exhaustion, resulting in a denial of service (DoS) condition. This vulnerability is due… | ||
| CVE-2020-24606 | Hig | 0.56 | 8.6 | 0.05 | Aug 24, 2020 | Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists… | ||
| CVE-2018-0228 | Hig | 0.56 | 8.6 | 0.04 | Apr 19, 2018 | A vulnerability in the ingress flow creation functionality of Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to cause the CPU to increase upwards of 100% utilization, causing a denial of service (DoS) condition on an affected system. The… | ||
| CVE-2020-11284 | Hig | 0.55 | 8.4 | 0.00 | May 7, 2021 | Locked memory can be unlocked and modified by non secure boot loader through improper system call sequence making the memory region untrusted source of input for secure boot loader in Snapdragon Auto, Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon… | ||
| CVE-2019-2025 | Hig | 0.54 | 7.8 | 0.01 | Jun 19, 2019 | In binder_thread_read of binder.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions:… | ||
| CVE-2010-4210 | Hig | 0.54 | 7.8 | 0.01 | Nov 22, 2010 | The pfs_getextattr function in FreeBSD 7.x before 7.3-RELEASE and 8.x before 8.0-RC1 unlocks a mutex that was not previously locked, which allows local users to cause a denial of service (kernel panic), overwrite arbitrary memory locations, and possibly execute arbitrary code… | ||
| CVE-2025-38491 | Hig | 0.53 | 8.2 | 0.00 | Jul 28, 2025 | In the Linux kernel, the following vulnerability has been resolved: mptcp: make fallback action and fallback decision atomic Syzkaller reported the following splat: WARNING: CPU: 1 PID: 7704 at net/mptcp/protocol.h:1223 __mptcp_do_fallback net/mptcp/protocol.h:1223 [inline]… | ||
| CVE-2025-21710 | Hig | 0.53 | 8.2 | 0.00 | Feb 27, 2025 | In the Linux kernel, the following vulnerability has been resolved: tcp: correct handling of extreme memory squeeze Testing with iperf3 using the "pasta" protocol splicer has revealed a problem in the way tcp handles window advertising in extreme memory squeeze situations. … |
- risk 0.64cvss 9.8epss 0.00
In the Linux kernel, the following vulnerability has been resolved: Revert "smb: client: fix TCP timers deadlock after rmmod" This reverts commit e9f2517a3e18a54a3943c098d2226b245d488801. Commit e9f2517a3e18 ("smb: client: fix TCP timers deadlock after rmmod") is intended to…
- risk 0.64cvss 9.8epss 0.01
In the Linux kernel, the following vulnerability has been resolved: net: systemport: Add global locking for descriptor lifecycle The descriptor list is a shared resource across all of the transmit queues, and the locking mechanism used today only protects concurrency across a…
- risk 0.64cvss 9.8epss 0.01
An issue was discovered in ShopXO 1.2.0. In the application\install\controller\Index.php file, there is no validation lock file in the Add method, which allows an attacker to reinstall the database. The attacker can write arbitrary code to database.php during system…
- risk 0.63cvss 7.8epss 0.00
A memory corruption issue was addressed with improved lock state checking. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious application…
- risk 0.58cvss 7.0epss 0.02
A race condition was addressed with improved locking. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious application may be able to elevate privileges. Apple…
- risk 0.57cvss 9.8epss 0.00
concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::ReadWriteLock#release_write_lock does not verify that the calling thread acquired the write lock. Any thread with access to the lock object can release an active write lock held by another…
- risk 0.57cvss 9.8epss 0.00
In the Linux kernel, the following vulnerability has been resolved: gfs2: add some missing log locking Function gfs2_logd() calls the log flushing functions gfs2_ail1_start(), gfs2_ail1_wait(), and gfs2_ail1_empty() without holding sdp->sd_log_flush_lock, but these functions…
- risk 0.57cvss 8.8epss 0.00
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac() Callers of wdev_chandef() must hold the wiphy mutex. But the worker cfg80211_propagate_cac_done_wk() never takes the lock. Which triggers the…
- risk 0.57cvss 8.8epss 0.00
In the Linux kernel, the following vulnerability has been resolved: Revert "arm64: dts: qcom: sdm845: Affirm IDR0.CCTW on apps_smmu" There are reports that the pagetable walker cache coherency is not a given across the spectrum of SDM845/850 devices, leading to lock-ups and…
- risk 0.57cvss 9.8epss 0.00
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix racy issue from session lookup and expire Increment the session reference count within the lock for lookup to avoid racy issue with session expire.
- risk 0.57cvss 8.8epss 0.01
Mozilla developers reported memory safety bugs present in Firefox 80. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 81.
- risk 0.57cvss 8.8epss 0.01
In the Media extractor, there is a possible use after free due to improper locking. This could lead to remote code execution in the media extractor with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions:…
- risk 0.56cvss 8.6epss 0.01
A vulnerability in the Common Open Policy Service (COPS) of Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to cause resource exhaustion, resulting in a denial of service (DoS) condition. This vulnerability is due…
- risk 0.56cvss 8.6epss 0.05
Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists…
- risk 0.56cvss 8.6epss 0.04
A vulnerability in the ingress flow creation functionality of Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to cause the CPU to increase upwards of 100% utilization, causing a denial of service (DoS) condition on an affected system. The…
- risk 0.55cvss 8.4epss 0.00
Locked memory can be unlocked and modified by non secure boot loader through improper system call sequence making the memory region untrusted source of input for secure boot loader in Snapdragon Auto, Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon…
- risk 0.54cvss 7.8epss 0.01
In binder_thread_read of binder.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions:…
- risk 0.54cvss 7.8epss 0.01
The pfs_getextattr function in FreeBSD 7.x before 7.3-RELEASE and 8.x before 8.0-RC1 unlocks a mutex that was not previously locked, which allows local users to cause a denial of service (kernel panic), overwrite arbitrary memory locations, and possibly execute arbitrary code…
- risk 0.53cvss 8.2epss 0.00
In the Linux kernel, the following vulnerability has been resolved: mptcp: make fallback action and fallback decision atomic Syzkaller reported the following splat: WARNING: CPU: 1 PID: 7704 at net/mptcp/protocol.h:1223 __mptcp_do_fallback net/mptcp/protocol.h:1223 [inline]…
- risk 0.53cvss 8.2epss 0.00
In the Linux kernel, the following vulnerability has been resolved: tcp: correct handling of extreme memory squeeze Testing with iperf3 using the "pasta" protocol splicer has revealed a problem in the way tcp handles window advertising in extreme memory squeeze situations. …