PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-77092 Commvault CVE debrief

CVE-2026-77092 is a HIGH severity vulnerability affecting Commvault Cloud's Content Extractor due to deserialization of untrusted data, impacting privilege management. The vulnerability affects specific versions, including 11.36.0 to 11.36.123, 11.40.0 to 11.40.72, 11.44.0 to 11.44.20, and 11.46.0 to 11.46.20. Software customers are advised to upgrade to a resolved maintenance release. Defenders should assess exposure, prioritize upgrading, and verify affected versions through inventory checks.

Vendor
Commvault
Product
Commvault Cloud
CVSS
HIGH 7.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-08
Original CVE updated
2026-09-11
Advisory published
2026-09-08
Advisory updated
2026-09-11

Who should care

Defenders responsible for Commvault Cloud deployments, particularly those using Content Extractor, should assess exposure and prioritize upgrading to a resolved maintenance release.

Why it matters

CVE-2026-77092 is a HIGH severity vulnerability in Commvault Cloud's Content Extractor. Defenders should prioritize upgrading to a resolved maintenance release to mitigate potential privilege management risks. Affected versions require verification, and inventory checks are necessary.

  • Potential privilege escalation requires verification
  • Upgrade to resolved maintenance release is recommended
  • Inventory checks for affected versions are necessary

Technical summary

CVE-2026-77092 is a HIGH severity vulnerability in Commvault Cloud's Content Extractor due to deserialization of untrusted data, affecting privilege management. Affected versions include 11.36.0 to 11.36.123, 11.40.0 to 11.40.72, 11.44.0 to 11.44.20, and 11.46.0 to 11.46.20.

Defensive priority

Defenders should prioritize upgrading Content Extractor to a resolved maintenance release to mitigate potential privilege management risks.

Recommended defensive actions

  • Upgrade Content Extractor to a resolved maintenance release
  • Review and update inventory of affected Commvault Cloud versions
  • Monitor for potential privilege management issues

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its HIGH severity score of 7.3 and affected software versions. Evidence is limited to public CVE and NVD data. Defenders should verify affected versions and upgrade to a resolved maintenance release. Further verification is required to assess potential privilege management risks.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-77092 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-77092

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-77092 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-77092

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source reference

    Unverified legacy reference

    URL: https://documentation.commvault.com/securityadvisories/CV_2026_07_6.html

    050066fd-a2f9-4f32-ab5d-4c53f48bc333 - Vendor Advisory

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.