CVE-2026-74432: Linux kernel · MSG_PEEK
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in e473cd3046a1aaec1e39af5df2042ce7c04d5e74 : update Linux kernel when convenient.
Data as of 30 Oct 2026, 13:18 UTC
Rated Low by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in e473cd3046a1aaec1e39af5df2042ce7c04d5e74, 86eff3140c9d4b52bba13d1cba266da933403e51, 6.16 +7
Exploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
This vulnerability has been fixed in Linux kernel versions 5.11, 6.2, 6.6.145, 6.12.97, and 6.16. Users and administrators should upgrade to these or later versions to remediate the issue. No additional mitigation is required beyond applying the official kernel updates.
Description
A vulnerability in the Linux kernel's rxrpc subsystem caused a reference leak when using recvmsg with the MSG_PEEK flag. The flaw was that rxrpc_recvmsg() did not properly drop the reference on an already-released call if MSG_PEEK was specified, potentially leading to resource leaks. This issue has been fixed in multiple Linux kernel versions starting from 5.11, 6.2, 6.6.145, 6.12.97, and 6.16.
References
- git.kernel.org/stable/c/86eff3140c9d4b52bba13d1cba266da933403e51 (opens in a new tab)
- git.kernel.org/stable/c/e473cd3046a1aaec1e39af5df2042ce7c04d5e74 (opens in a new tab)
- git.kernel.org/stable/c/2b69b61057eb0b3db9ad754ef0f1436b7af3a9f5 (opens in a new tab)
- git.kernel.org/stable/c/04c7103dc0923cc6ac95b97aa66bab70da7ace84 (opens in a new tab)
- git.kernel.org/stable/c/4bdb9e471f5b1ac9cbe4add5de7ff085a0ec303c (opens in a new tab)