Is CVE-2025-64102 actively exploited?

No active exploitation of CVE-2025-64102 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-64102 be exploited remotely?

Yes. CVE-2025-64102 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-64102?

CVE-2025-64102 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2025-64102

CWE-307Published: October 29, 2025· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2025-64102 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.