CVE-2026-77092: Commvault Content Extractor deserialization privilege escalation

CVE-2026-77092 · Severity: critical · CVSS 9.8 · Published 2026-09-08

Commvault Content Extractor, a component used to process and extract data from various file formats in backup and recovery operations, contains a vulnerability that allows an attacker to escalate privileges. An exploit of this issue could allow an unauthorized user to gain elevated access to the system, potentially enabling theft of sensitive backup data or disruption of critical data protection operations.

Vendors: Commvault.

Quick answers

Is CVE-2026-77092 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-77092 being exploited in the wild.
How severe is CVE-2026-77092?
Critical severity, with a CVSS score of 9.8, published 8 September 2026.
Which products and versions are affected?
Commvault Content Extractor 11.46.0-11.46.19, 11.44.0-11.44.19, 11.40.0-11.40.71, 11.36.0-11.36.122.
Is there a fix for CVE-2026-77092?
A patch was published on 2026-09-08: Fixed in versions 11.46.20+, 11.44.20+, 11.40.72+, 11.36.123+ Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-77092 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-77092?
Check whether you run Commvault Content Extractor at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a deserialization of untrusted data (CWE-502) issue in Commvault Content Extractor that affects privilege management. The root cause lies in unsafe deserialization of untrusted input, which can be exploited to achieve privilege escalation. The attack vector is not explicitly specified in the advisory but deserialization flaws typically require network access and may not require authentication depending on the exposure of the vulnerable component. An attacker who exploits this vulnerability can escalate privileges within the affected system. Patches are available: versions 11.46.20+, 11.44.20+, 11.40.72+, and 11.36.123+ resolve the issue.

Affected products

  • Commvault Content Extractor 11.46.0-11.46.19, 11.44.0-11.44.19, 11.40.0-11.40.71, 11.36.0-11.36.122

Timeline

  • 2026-09-08: disclosed
  • 2026-09-08: patched: Fixed in versions 11.46.20+, 11.44.20+, 11.40.72+, 11.36.123+

References

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