Exploitation evidence
Known exploited · CISA KEV listed
Added 2025-04-28. Ransomware campaign use: Unknown.
CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date: 2025-05-19. This is the catalog’s deadline, not an assessment of your organization’s exposure.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
Commvault / Web Server
Default status: unaffected
- affected: 11.36.0 to < 11.36.46 (custom)
- unaffected: 11.36.46
- affected: 11.32.0 to < 11.32.89 (custom)
- unaffected: 11.32.89
- affected: 11.28.0 to < 11.28.141 (custom)
- unaffected: 11.28.141
- affected: 11.20.0 to < 11.20.217 (custom)
- unaffected: 11.20.217
Fixes and workarounds
No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.
Sources and related reporting
CVE Program record ↗ · Download tracked evidence as JSON
- https://documentation.commvault.com/securityadvisories/CV_2025_03_1.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-3928
- https://www.commvault.com/blogs/security-advisory-march-7-2025
- https://www.commvault.com/blogs/notice-security-advisory-update
- https://www.cisa.gov/news-events/alerts/2025/05/22/advisory-update-cyber-threat-activity-targeting-commvaults-saas-cloud-application-metallic
- https://www.commvault.com/blogs/customer-security-update
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3928
- https://www.bleepingcomputer.com/news/security/commvault-says-recent-breach-didnt-impact-customer-backup-data/
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
"epss": 0.02527,
"percentile": 0.85117
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.02527,
"percentile": 0.85024
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.02527,
"percentile": 0.85005
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.02527,
"percentile": 0.84997
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.02527,
"percentile": 0.84985
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.02527,
"percentile": 0.84963
}06 Nov 2026, 06:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.02527,
"percentile": 0.84951
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.02527,
"percentile": 0.84939
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.02527,
"percentile": 0.84911
}03 Nov 2026, 18:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-3928",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-30T03:56:24.936967Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2025-04-28",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3928"
},
"type": "kev"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-94",
"description": "CWE-94 Improper Control of Generation of Code ('Code Injection')",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-07T17:54:32.426Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3928"
}
],
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2025-05-05T13:34:41.408Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://www.bleepingcomputer.com/news/security/commvault-says-recent-breach-didnt-impact-customer-backup-data/"
}
],
"title": "CVE Program Container",
"x_generator": {
"engine": "ADPogram 0.0.1"
}
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Web Server",
"vendor": "Commvault",
"versions": [
{
"lessThan": "11.36.46",
"status": "affected",
"version": "11.36.0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "11.36.46"
},
{
"lessThan": "11.32.89",
"status": "affected",
"version": "11.32.0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "11.32.89"
},
{
"lessThan": "11.28.141",
"status": "affected",
"version": "11.28.0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "11.28.141"
},
{
"lessThan": "11.20.217",
"status": "affected",
"version": "11.20.0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "11.20.217"
}
]
}
],
"datePublic": "2025-02-24T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"privilegesRequired": "LOW",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "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",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH"
}
},
{
"other": {
"content": {
"id": "CVE-2025-3928",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-25T17:58:52.842478Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-noinfo Not enough information",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-05-27T20:03:27.556Z",
"orgId": "9119a7d8-5eab-497f-8521-727c672e3725",
"shortName": "cisa-cg"
},
"references": [
{
"name": "url",
"url": "https://documentation.commvault.com/securityadvisories/CV_2025_03_1.html"
},
{
"name": "url",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-3928"
},
{
"name": "url",
"url": "https://www.commvault.com/blogs/security-advisory-march-7-2025"
},
{
"name": "url",
"url": "https://www.commvault.com/blogs/notice-security-advisory-update"
},
{
"name": "url",
"url": "https://www.cisa.gov/news-events/alerts/2025/05/22/advisory-update-cyber-threat-activity-targeting-commvaults-saas-cloud-application-metallic"
},
{
"name": "url",
"url": "https://www.commvault.com/blogs/customer-security-update"
}
],
"title": "Commvault Web Server unspecified vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "9119a7d8-5eab-497f-8521-727c672e3725",
"assignerShortName": "cisa-cg",
"cveId": "CVE-2025-3928",
"datePublished": "2025-04-25T15:56:28.112Z",
"dateReserved": "2025-04-24T19:55:32.578Z",
"dateUpdated": "2026-10-07T17:54:32.426Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.02527,
"percentile": 0.84892
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2025-3928",
"cwes": [],
"dateAdded": "2025-04-28",
"dueDate": "2025-05-19",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Unknown",
"notes": "https://documentation.commvault.com/securityadvisories/CV_2025_03_1.html; https://www.commvault.com/blogs/notice-security-advisory-update; https://nvd.nist.gov/vuln/detail/CVE-2025-3928 ",
"product": "Web Server",
"requiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
"shortDescription": "Commvault Web Server contains an unspecified vulnerability that allows a remote, authenticated attacker to create and execute webshells.",
"vendorProject": "Commvault",
"vulnerabilityName": "Commvault Web Server Unspecified Vulnerability"
}