CommServe Information Disclosure
Priority LOW 38CWE-288Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-288.
Summary
CommServe contained an authentication bypass issue affecting access authorization and information disclosure. Software customers upgrade to resolved maintenance release. Update CommServe.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00497 42nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Commvault | Commvault Cloud | 11.46.0 – 11.46.19; 11.44.0 – 11.44.19; 11.40.0 – 11.40.71; 11.36.0 – 11.36.122 | — | No fix listed | CNA |
- Commvault Cloud VendorCommvault Affected 11.46.0 – 11.46.19; 11.44.0 – 11.44.19; 11.40.0 – 11.40.71; 11.36.0 – 11.36.122 Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:commvault:commvault:*:*:*:*:*:*:*:* | 11.36.0 to before 11.36.123; 11.40.0 to before 11.40.72; 11.44.0 to before 11.44.20; 11.46.0 to before 11.46.20 | Vulnerable | Commvault |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:commvault:commvault:*:*:*:*:*:*:*:* Versions 11.36.0 to before 11.36.123; 11.40.0 to before 11.40.72; 11.44.0 to before 11.44.20; 11.46.0 to before 11.46.20 Vulnerable ·Commvault
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-77103
- 2026-10-03 Alias added: GHSA-6hfr-j2g6-38r3
References
More Commvault vulnerabilities
- TI-2025-24197 Commvault Command Center Innovation Release <= 11.38.25 Unathenticated Install Package Path Traversal KEVCVSS 4.0CRITICAL 9.3
- TI-2025-03473 Commvault Web Server unspecified vulnerability KEVCVSS 4.0HIGH 8.7
- TI-2017-13252 A Command Injection issue was discovered in ContentStore/Base/CVDataPipe.dll in Commvault… CVSS 3.0CRITICAL 9.8
- TI-2025-35673 Path traversal in Commvault CommCell CVSS 4.0HIGH 8.7
- TI-2025-35674 Argument Injection Vulnerability in CommServe CVSS 4.0MEDIUM 6.9
- TI-2026-53842 Command Center API Authentication Bypass CVSS 4.0CRITICAL 9.3
Sources
- CVE-2026-77103 · CVE Program
- CVE-2026-77103 · NVD
- FIRST EPSS
- GHSA-6hfr-j2g6-38r3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences