CVE-2025-3928
Confirmed PUBLISHEDCommvault Web Server unspecified vulnerability
398 days faster than CISA KEV
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
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.
- CVE Published
- Apr 25, 2025
- Exploitation Reported
- Apr 28, 2025
- CVSS
- 8.7 High
- EPSS
- 1.9%
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Commvault |
Web Server
|
11.36.0 to < 11.36.46 |
Affected |
| Commvault |
Web Server
|
11.36.46 |
Unaffected |
| Commvault |
Web Server
|
11.32.0 to < 11.32.89 |
Affected |
| Commvault |
Web Server
|
11.32.89 |
Unaffected |
| Commvault |
Web Server
|
11.28.0 to < 11.28.141 |
Affected |
| Commvault |
Web Server
|
11.28.141 |
Unaffected |
| Commvault |
Web Server
|
11.20.0 to < 11.20.217 |
Affected |
| Commvault |
Web Server
|
11.20.217 |
Unaffected |
CVE References
- url documentation.commvault.com · CVE Record https://documentation.commvault.com/securityadvisories/CV_2025_03_1.html
- url cisa.gov · CVE Record https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_a...
- url commvault.com · CVE Record https://www.commvault.com/blogs/security-advisory-march-7-2025
- url commvault.com · CVE Record https://www.commvault.com/blogs/notice-security-advisory-update
- url cisa.gov · CVE Record https://www.cisa.gov/news-events/alerts/2025/05/22/advisory-update-cy...
Show 1 more reference
- url commvault.com · CVE Record https://www.commvault.com/blogs/customer-security-update
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CVE First | 2025-04-30 15:36 UTC |
| CISA | 2026-06-02 14:08 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
Exploited in the wild
Recorded 2025-04-28 00:00:00 UTC · CISA
Recent Mentions
TheHackerNews · May 01, 2025
Enterprise data backup platform Commvault has revealed that an unknown nation-state threat actor breached its Microsoft Azure environment by exploiting CVE-2025-3928 but emphasized there is no evidence of unauthorized data access. "This activity has affected a small number of customers we have in common with Microsoft, and we are working with those customers to provide assistance," the company
All CISA Advisories · Apr 28, 2025
CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2025-1976 Broadcom Brocade Fabric OS Code Injection Vulnerability CVE-2025-42599 Qualitia Active! Mail Stack-Based Buffer Overflow Vulnerability CVE-2025-3928 Commvault Web Server Unspecified Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the Known Exploited Vulnerabilities Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
14:08 UTC about 2 months ago14:08 UTC · about 2 months ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
15:36 UTC about 1 year ago15:36 UTC · about 1 year ago
Added to KEVIntel KEV Feed
High-confidence, third-party attested exploitation
-
15:56 UTC about 1 year ago15:56 UTC · about 1 year ago
CVE published
Vulnerability disclosed publicly
-
19:55 UTC about 1 year ago19:55 UTC · about 1 year ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2025-3928
{
"cve_id": "CVE-2025-3928",
"title": "Commvault Web Server unspecified vulnerability",
"affected_vendor": "Commvault",
"affected_product": "Web Server",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 8.7,
"epss_score": 0.01932,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}