Commvault’s Comedy of Errors: Vulnerability Exploited by Nation-State, But No Backup Drama!

Commvault has disclosed IoCs linked to CVE-2025-3928, a vulnerability in its software. The issue, now part of CISA’s KEV catalog, allows remote exploitation to execute webshells, potentially compromising systems. A previously exploited zero-day, this flaw impacts certain Commvault versions. The company is actively assisting affected clients and enhancing security measures.

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Hot Take:

Commvault’s latest vulnerability mishap reads like a cybersecurity soap opera: zero-days, nation-state actors, and a cameo by Microsoft. If only this drama had commercials so we could grab some popcorn!

Key Points:

  • Commvault’s new vulnerability, CVE-2025-3928, scores an impressive 8.7 on the CVSS scale, making it a real showstopper.
  • The vulnerability allows remote webshell exploitation, leading to a complete compromise of affected systems.
  • Commvault has already patched the affected software versions and is actively sharing IoCs to help others play detective.
  • This cyber incident was a zero-day exploitation, catching Commvault by surprise, thanks to a suspected nation-state actor.
  • Commvault has ramped up security measures, including key rotation and stronger monitoring rules, to keep future cyber dramas at bay.

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