CVE-2023-52440
CRITICAL 9.8EPSS 21.9%
In the Linux kernel, the following vulnerability has been resolved:ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob()If authblob->SessionKey.Length is bigger than session keysize(CIFS_KEY_SIZE), slub overflow can happen in key exchange codes.cifs_arc4_crypt copy to session key array from SessionKey from client.
- CVSS v3.1
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 21.91% chance of exploitation in the next 30 days, 97th percentile
- Published
- 2024-02-21
- Updated
- 2026-08-15
Proof-of-concept exploits (1)
- BitsByWill/ksmbd-n-day55★ · 2025-09-13