CVE-2026-77102

8.7 highEPSS 0.5%

High (8.7) in commvault commvault. EPSS 0.5% chance of exploitation in the next 30 days.

CommServe contained a heap-based buffer overflow issue affecting service availability. Software customers upgrade to resolved maintenance release. Update CommServe.

Severity

CVSS 4.0

8.7 high

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
CWE: CWE-122
Published: 2026-09-08
Modified: 2026-09-09
Record from: the NVD, synced 2026-10-19

Affected

commvault:commvault

References

https://documentation.commvault.com/securityadvisories/CV_2026_08_4.html

Check your stack JSON