CVEvulnerability

CVE-2026-54411

6.9 MEDIUM Published 2026-06-14 Modified 2026-08-10 Official page ↗
Status
Deferred
Published
2026-06-14
Last modified
2026-08-10
Assigner
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
CVSS 4.0 (309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c)
6.9 MEDIUM — CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:X/V:D/RE:X/U:X
CVSS 3.1 (309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c)
5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-208

Description

Linux-PAM through 1.7.2 contains an observable timing discrepancy (CWE-208) in the pam_userdb module's plaintext-password comparison path in modules/pam_userdb/pam_userdb.c that allows a local or network-adjacent attacker able to repeatedly drive authentication through a calling service to recover the plaintext password of a target account by measuring response-timing differences.

Related

Weakness · CWE (1)

  • CWE-208 Observable Timing Discrepancy weakness

References