CVE-2025-40099 — Improper Validation of Consistency within Input in Linux
Severity
3.2LOWOSV
No vectorEPSS
0.1%
top 82.56%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedOct 30
Latest updateApr 9
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.