CVE-2026-13738Improper Authorization Validation

CommServe contained an authorization bypass vulnerability affecting a limited set of command execution operations. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including Commserve, Webserver, Command Center, Media Agents, Clients and HyperScale X.

9.2 CRITICALEPSS 0.67%Not in KEVNVD: Analyzed

Last updated: 2026-10-23 19:10 UTC

OverviewCVSS details

9.2CRITICALCVSS 4.0

Score source: Commvault (CNA)
NVD status: Analyzed
Published: Aug 11, 2026
Assigner: Commvault

Affected

Commvault Cloud (Commvault)

Versions: 11.46.0 through 11.46.9 · 11.44.0 through 11.44.10
Fixed in: 11.46.10, 11.44.11, 11.40.63

All affected versions →

Exploitation

Public exploit: None listed
CISA KEV: Not listed
KEV due date: —
SSVC: Exploitation none · Automatable no · Impact total

EPSS · FIRST, scored Nov 8

0.67%chance of exploitation in 30 days

Higher than 52.28% of CVEs

CVSS 4.0 · Commvault (CNA)

9.2Critical

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

Attack vector: Network
Attack complexity: High
Attack requirements: None
Privileges required: None
User interaction: None
Confidentiality impact: High
Integrity impact: High
Availability impact: High
Confidentiality (other systems): None
Integrity (other systems): None
Availability (other systems): None

CVSS 3.1 · NVD

9.8Critical

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

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
9.2	CRITICAL	4.0Commvault (CNA)	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8	CRITICAL	3.1NVD	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CVE ID: CVE-2026-13738
Status: Analyzed
Assigner (CNA): Commvault
Published: Aug 11, 2026
Last modified: 2026-10-23 19:10 UTC
Weaknesses: CWE-863

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-09 12:25 UTC.