[NEW] [high] Commvault Backup & Recovery: Multiple Vulnerabilities

highCVE-2026-13737 CVE-2026-13738 CVE-2026-13739

A remote, anonymous attacker can exploit multiple vulnerabilities in Commvault Backup & Recovery to bypass security measures, execute arbitrary code, and conduct server-side request forgery attacks.

CSIRTS triage

vendor: Commvault product: Backup & Recovery Authentication bypass Remote code execution Server-side request forgery

What: Remote vulnerabilities in Commvault Backup & Recovery enable authentication bypass, arbitrary code execution, and server-side request forgery.
Who is affected: Organizations using Commvault Backup & Recovery accessible from the network.
Urgency: High severity affecting a critical backup solution; exploitable without authentication.
Action: Apply Commvault security patches for CVE-2026-13737, CVE-2026-13738, and CVE-2026-13739 immediately.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-08-12
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2767

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-137370.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 36% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-137380.53% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 42% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-137390.31% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-13737	coverage & exploitation status	NVD · CVE.org
CVE-2026-13738	coverage & exploitation status	NVD · CVE.org
CVE-2026-13739	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.