> CVE-2022-50859

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PUBLISHED
2025-12-30 13:16
MODIFIED
2025-12-30 13:16
EPSS (Prob. Exploit)
0.24%
Top 85.2%
DATA SOURCES:
NVD 🔗 2025-12-30 RED HAT 🔗 2026-01-04 CVE PROJECT 🔗 2026-01-19 FIRST EPSS 🔗 2026-10-25 OSV 🔗 2026-03-01

> DESCRIPTION

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix the error length of VALIDATE_NEGOTIATE_INFO message Commit d5c7076b772a ("smb3: add smb3.1.1 to default dialect list") extend the dialects from 3 to 4, but forget to decrease the extended length when specific the dialect, then the message length is larger than expected. This maybe leak some info through network because not initialize the message body. After apply this patch, the VALIDATE_NEGOTIATE_INFO message length is reduced from 28 bytes to 26 bytes.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Low

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

cifs: Fix the error length of VALIDATE_NEGOTIATE_INFO message

AFFECTED PACKAGES:
Unknown / Unknown
637 versions affected
Linux / Kernel

> HISTORIQUE DES MODIFICATIONS

Première apparition
30/12/2025 13:16
Source: NVD
📊 ENRICHISSEMENT 19/01/2026 17:38
CVEPROJECT
Champ modifié: CVE Project
Ancienne valeur:
Non
Nouvelle valeur:
Oui
📊 ENRICHISSEMENT 04/01/2026 04:01
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Low", "severity_scale": null }
📊 ENRICHISSEMENT 04/01/2026 04:01
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 3 Dernière mise à jour: 9 months ago

> REFERENCES

https://git.kernel.org/stable/c/60480291c1fcafad8425d93f771b5bcc2bd398b4
https://git.kernel.org/stable/c/9312e04b6c6bc46354ecd0cc82052a2b3df0b529
https://git.kernel.org/stable/c/943eb0ede74ecd609fdfd3f0b83e0d237613e526
https://git.kernel.org/stable/c/d0050ec3ebbcb3451df9a65b8460be9b9e02e80c
https://git.kernel.org/stable/c/e98ecc6e94f4e6d21c06660b0f336df02836694f
https://git.kernel.org/stable/c/fada9b8c95c77bb46b89e18117405bc90fce9f74
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