AUGUST 4, 2026
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Case File

CVE-2025-40099

CRITICAL · CVSS 9.4 EPSS 0.38%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-10-30 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.4. It affects Linux.

CVE
CVE-2025-40099
Severity
CRITICAL
CVSS
9.4
EPSS
0.38%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: cifs: parse_dfs_referrals: prevent oob on malformed input Malicious SMB server can send invalid reply to FSCTL_DFS_GET_REFERRALS - reply smaller than sizeof(struct get_dfs_referral_rsp) - reply with number of referrals smaller than NumberOfReferrals in the header Processing of such replies will cause oob. Return -EINVAL error on such replies to prevent oob-s.