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CVE-2025-21611

8.8 · HIGH

tgstation-server is a production scale tool for BYOND server management.

Published Jan 6, 2025CWE-285EPSS 0.48%

Overview

CVE-2025-21611 is a high-severity vulnerability. It was published on January 6, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

tgstation-server is a production scale tool for BYOND server management. Prior to 6.12.3, roles used to authorize API methods were incorrectly OR'd instead of AND'ed with the role used to determine if a user was enabled. This allows enabled users access to most, but not all, authorized actions regardless of their permissions. Notably, the WriteUsers right is unaffected so users may not use this bug to permanently elevate their account permissions. The fix is release in tgstation-server-v6.12.3.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/tgstation/tgstation-server/commit/e7b1189620baaf03c2d23f6e164d07c7c7d87d57GitHubgithub.com/tgstation/tgstation-server/issues/2064GitHubgithub.com/tgstation/tgstation-server/security/advisories/GHSA-rf5r-q276-vrc4

How CyberStrike helps

Frequently asked questions

What is CVE-2025-21611?

CVE-2025-21611 is a high-severity vulnerability. It was published on January 6, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-21611?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-21611?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-21611?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-21611 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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