CVE-2025-22037
MEDIUMEPSS 97th pctlDescription
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in alloc_preauth_hash() The Client send malformed smb2 negotiate request. ksmbd return error response. Subsequently, the client can send smb2 session setup even thought conn->preauth_info is not allocated. This patch add KSMBD_SESS_NEED_SETUP status of connection to ignore session setup request if smb2 negotiate phase is not complete.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploit Intelligence
Very high risk: more likely to be exploited than 97% of all known CVEs.
References
- https://git.kernel.org/stable/c/8f216b33a5e1b3489c073b1ea1b3d7cb63c8dc4d
- https://git.kernel.org/stable/c/b8eb243e670ecf30e91524dd12f7260dac07d335
- https://git.kernel.org/stable/c/c8b5b7c5da7d0c31c9b7190b4a7bba5281fc4780
- https://git.kernel.org/stable/c/ca8bed31edf728a662ef9d6f39f50e7a7dc2b5ad
- https://git.kernel.org/stable/c/cce57cd8c5dead24127cf2308fdd60fcad2d6ba6
- https://www.zerodayinitiative.com/advisories/ZDI-25-310/
Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-09-19.