CVE-2025-64102CRITICAL 9.8EPSS p24.6%
CVE-2025-64102CVE-2025-64102
Description
Zitadel is open-source identity infrastructure software. Prior to 4.6.0, 3.4.3, and 2.71.18, an attacker can perform an online brute-force attack on OTP, TOTP, and passwords. While Zitadel allows preventing online brute force attacks in scenarios like TOTP, Email OTP, or passwords using a lockout mechanism. The mechanism is not enabled by default and can cause a denial of service for the corresponding user if enabled. Additionally, the mitigation strategies were not fully implemented in the more recent resource-based APIs. This vulnerability is fixed in 4.6.0, 3.4.3, and 2.71.18.
Scoring
| CVSS 3.1 | 9.8 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 0.33% probability of exploitation · percentile 24.6% · 2026-06-19T12:03:05Z |
| Published | 2025-10-29 |
| Last modified | 2025-11-04 |
Underlying weaknesses· 1
References
1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Improper Restriction of Excessive Authentication Attemptscwe-307 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.