CVE-2025-24924 GMOD CVE debrief

Who should care

Organizations using GMOD Apollo, especially industrial control system operators, administrators, and security teams responsible for network-facing Apollo deployments or administrative access paths.

Technical summary

CISA’s CSAF advisory identifies GMOD Apollo < 2.8.0 as affected by an authentication-related weakness: certain functionality does not require authentication when an administrative username is supplied. The advisory lists the fix as Apollo 2.8.0. The included CVSS 3.1 vector is AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N, indicating network reachability, low attack complexity, and high integrity impact.

Defensive priority

High for exposed Apollo deployments. The issue is publicly documented by CISA and has a vendor-recommended fix available, so remediation should be scheduled promptly and validated in affected environments.

Recommended defensive actions

• Upgrade GMOD Apollo to version 2.8.0 or later as recommended by GMOD.
• Inventory all Apollo deployments and confirm which instances are below 2.8.0.
• Review administrative account usage and restrict administrative usernames and access paths to trusted operators only.
• Monitor authentication-related logs and administrative activity for unexpected access attempts or privilege-use anomalies.
• Follow CISA industrial control system defensive guidance and apply layered access controls around Apollo deployments.

Evidence notes

All claims are drawn from the supplied CISA CSAF source item and its listed references. The source states that GMOD Apollo < 2.8.0 is affected, that certain functionality does not require authentication when passed with an administrative username, and that the remediation is to update to version 2.8.0. Timing in this debrief uses the CVE/source publication date of 2025-03-04.

Official resources