CVE-2025-3928
Commvault Web Server has an unspecified vulnerability that can be exploited by a remote, authenticated attacker. According to the Commvault advisory: "Webservers can be compromised through bad actors creating and executing webshells." Fixed in version 11.36.46, 11.32.89, 11.28.141, and 11.20.217 for Windows and Linux platforms. This vulnerability was added to the CISA Known Exploited Vulnerabilities (KEV) Catalog on 2025-04-28.
do firstUpgrade to a fixed release: 11.36.46, 11.32.89, 11.28.141, 11.20.217.
Can a WAF block it? Partly. Code injection payloads are often obfuscated, so they slip past generic WAF rules.
Also consider: remove eval sinks · RASP
Based on the weakness type only; no CVE-specific evidence yet. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.
Is CVE-2025-3928 being exploited?
Yes. CVE-2025-3928 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2025-3928?
CVE-2025-3928 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2025-3928?
Yes. A fix has been recorded for CVE-2025-3928. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2025-3928 affect?
CVE-2025-3928 affects commvault:commvault. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
- affected>= 11.36.0 and < 11.36.46
- affected>= 11.32.0 and < 11.32.89
- affected>= 11.28.0 and < 11.28.141
- affected>= 11.20.0 and < 11.20.217
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
cisa ssvc
- exploitation
- active
- automatable
- no
- technical impact
- total
Assessed by CISA 30 Apr 2025 (SSVC 2.0.3).
timeline
- 25 Apr 2025Published
- 28 Apr 2025Added to CISA KEV (exploited in the wild) · 2 days later
- 30 Apr 2025CISA SSVC assessment: exploitation active · 2 days later
- 19 May 2025CISA remediation due date (US federal agencies) · 19 days later
- 7 Oct 2026CVE record last updated · 507 days (about 1 year) later
- 2 Nov 2026Analysed by vulneraibility.com · 26 days later
- Linkdocumentation.commvault.com /securityadvisories/CV_2025_03_1.html
- Linkcisa.gov /known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-3928
- Linkcommvault.com /blogs/security-advisory-march-7-2025
- Linkcommvault.com /blogs/notice-security-advisory-update
- Linkcisa.gov /news-events/alerts/2025/05/22/advisory-update-cyber-threat-activity-targeting-c
- Linkcommvault.com /blogs/customer-security-update
- Linkcisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3928
- Linkbleepingcomputer.com /news/security/commvault-says-recent-breach-didnt-impact-customer-backup-data/
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA KEV catalog: exploitation, date added, due date
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.