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High 8.2Published Apr 24, 2026
CVE-2026-31631rxrpc: Fix buffer overread in rxgk_do_verify_authenticator()
Updated under an hour ago ()
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In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix buffer overread in rxgk_do_verify_authenticator() Fix rxgk_do_verify_authenticator() to check the buffer size before checking the nonce.
- CVSS
- 8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a before 794586789800b16dcbe235452494f4223ac80413; 9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a builds before 1c4422d8be81718ecb15d79aedff607323085201; from 9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a before f564af387c8c28238f8ebc13314c589d7ba8475d | CNA record |
linux linux_kernel linux:linux_kernel | from 6.16.1 before 6.18.23; from 6.19 before 6.19.13; 6.16; 7.0; 7.0; 7.0; 7.0; 7.0; and 2 more ranges | NVD |
References
- https://git.kernel.org/stable/c/794586789800b16dcbe235452494f4223ac80413patch
- https://git.kernel.org/stable/c/1c4422d8be81718ecb15d79aedff607323085201patch
- https://git.kernel.org/stable/c/f564af387c8c28238f8ebc13314c589d7ba8475dpatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.