# CVE-2026-64208: linux: In the Linux kernel, the following vulnerability has been resolved:  crypto/krb5, rxrpc: Fix lack of pre-decrypt/pre-...

CVE-2026-64208 is fixed in linux on 1 platform by DEBIAN-CVE-2026-64208 (version 7.0.12-1), released July 25, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-64208
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0061
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 24, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.0.12-1 | [DEBIAN-CVE-2026-64208](https://patchblox.com/security/data/fix/linux/debian-cve-2026-64208.md) | Jul 25, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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