High 7.5Published Jul 24, 2026

CVE-2026-64208crypto/krb5, rxrpc: Fix lack of pre-decrypt/pre-verify length checks

Updated under an hour ago (Oct 27, 2026, 2:40 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: crypto/krb5, rxrpc: Fix lack of pre-decrypt/pre-verify length checks Change the krb5 crypto library to provide facilities to precheck the length of the message about to be decrypted or verified. Fix AF_RXRPC to make use of this to validate DATA packets secured with RxGK.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a before 585f9f6aef5c4542ac9d6ec45cd7dbc7df9af3ff; from 9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a before 9217017f4bce53dddb8d547837f1f707045d64ad; 9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a builds before 2b50aceafe6606ea52ed42aadd1b4d44a188aade	CNA record
linux linux_kernel linux:linux_kernel	from 6.16 before 6.18.34; from 6.19 before 7.0.11; 7.1; 7.1; 7.1; 7.1	NVD

References

References

https://git.kernel.org/stable/c/585f9f6aef5c4542ac9d6ec45cd7dbc7df9af3ff	patch
https://git.kernel.org/stable/c/9217017f4bce53dddb8d547837f1f707045d64ad	patch
https://git.kernel.org/stable/c/2b50aceafe6606ea52ed42aadd1b4d44a188aade	patch

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.