vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2026-64208

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

HIGH
7.5
CVSS Score
Published: July 24, 2026 at 03:23 PM UTC
Updated: August 12, 2026 at 12:36 AM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH7.5
Exploit prediction
EPSS 0.6%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.16 ≤ v < 6.18.346.16 ≤ v < 7.0.116.16 ≤ v < 7.16.19 ≤ v < 7.0.117.1 rc17.1 rc27.1 rc37.1 rc49d1d2b59341f58126a69b51f9f5f8ccb9f12e54a
Vendor states this is fixed in 2b50aceafe6606ea52ed42aadd1b4d44a188aade (fixed)
Vendor states this is fixed in 585f9f6aef5c4542ac9d6ec45cd7dbc7df9af3ff (fixed)
Vendor states this is fixed in 9217017f4bce53dddb8d547837f1f707045d64ad (fixed)
Vendor states this is fixed in 6.16 (unaffected)
Vendor states this is fixed in 6.18.34 (unaffected)
Vendor states this is fixed in 7.0.11 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

References (3)

Patch
Source: cverecord
https://git.kernel.org/stable/c/585f9f6aef5c4542ac9d6ec45cd7dbc7df9af3ff
Patch
Source: cverecord
https://git.kernel.org/stable/c/9217017f4bce53dddb8d547837f1f707045d64ad
Patch
Source: cverecord
https://git.kernel.org/stable/c/2b50aceafe6606ea52ed42aadd1b4d44a188aade

CVSS

7.5HIGHLinux
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card