CVE-2026-77103: CommServe contained an authentication bypass issue affecting access authorization and information disclosure. Software customers upgrade to resolved…

PriorityP348high7.5CVSS 3.1

AVNACLPRNUINSUCHINAN

EPSS

0.29%

21.7th percentile

CommServe contained an authentication bypass issue affecting access authorization and information disclosure. Software customers upgrade to resolved maintenance release. Update CommServe.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
commvault	commvault	>= 11.36.0 < 11.36.123	11.36.123
commvault	commvault	>= 11.40.0 < 11.40.72	11.40.72
commvault	commvault	>= 11.44.0 < 11.44.20	11.44.20
commvault	commvault	>= 11.46.0 < 11.46.20	11.46.20
commvault	commvault_cloud	11.36.0 – 11.36.122	—
commvault	commvault_cloud	11.40.0 – 11.40.71	—
commvault	commvault_cloud	11.44.0 – 11.44.19	—
commvault	commvault_cloud	11.46.0 – 11.46.19	—

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

nvdv4.08.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.