CVEvulnerability

CVE-2026-84461

6.9 MEDIUM Published 2026-09-25 Modified 2026-09-28 Official page ↗
Status
Deferred
Published
2026-09-25
Last modified
2026-09-28
Assigner
[email protected]
CVSS 4.0 ([email protected])
6.9 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/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:X/R:X/V:X/RE:X/U:X
Weaknesses
CWE-203, CWE-307, CWE-799

Description

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, the two-factor login step let an attacker try unlimited password guesses for any account without triggering Zammad's normal lockout or rate limiting. The response also revealed whether a guess was correct, even before two-factor authentication was checked. This made it possible to brute-force weak or reused passwords. This issue is fixed in version 7.1.2.

Related

Weakness · CWE (3)

  • CWE-203 Observable Discrepancy weakness
  • CWE-307 Improper Restriction of Excessive Authentication Attempts weakness
  • CWE-799 Improper Control of Interaction Frequency weakness

References