CVE-2025-3928

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-04-28), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 2%CVSS: 8.8Exploit: cisa kev · ssvc activeExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
2%
EPSS %ILE
80%
KEV
⚠ Exploited

Published

April 25, 2025

Last Modified

October 31, 2025

Advisory Details (7)

Auto-updated Jun 2, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3928
generic

Commvault says recent breach didn't impact customer backup data

https://www.bleepingcomputer.com/news/security/commvault-says-recent-breach-didnt-impact-customer-backup-data/
generic

Notice: Security Advisory | Blog | Commvault

https://www.commvault.com/blogs/security-advisory-march-7-2025
generic

Notice: Security Advisory (Update) | Commvault | Blog

https://www.commvault.com/blogs/customer-security-update
cisa Patch Available🔴 Active Exploitation

Advisory Update on Cyber Threat Activity Targeting Commvault’s SaaS Cloud Application (Metallic) | CISA

Advisory Update on Cyber Threat Activity Targeting Commvault’s SaaS Cloud Application (Metallic) | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/news-events/alerts/2025/05/22/advisory-update-cyber-threat-activity-targeting-commvaults-saas-cloud-application-metallic
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-3928
generic

CV_2025_03_1

https://documentation.commvault.com/securityadvisories/CV_2025_03_1.html

Data Freshness Timeline

(refreshed 56× in last 7d / 226× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 518 total refreshes for this CVE.

  1. 2026-08-08 11:56 UTCGHSA enrichment
  2. 2026-08-08 07:35 UTCGHSA enrichment
  3. 2026-08-08 03:15 UTCGHSA enrichment
  4. 2026-08-07 22:54 UTCGHSA enrichment
  5. 2026-08-07 18:34 UTCEG score recompute
  6. 2026-08-07 18:34 UTCGHSA enrichment
  7. 2026-08-07 17:09 UTCCISA KEV update
  8. 2026-08-07 16:26 UTCEPSS rescore
  9. 2026-08-07 14:13 UTCGHSA enrichment
  10. 2026-08-07 09:52 UTCGHSA enrichment
  11. 2026-08-07 05:31 UTCGHSA enrichment
  12. 2026-08-07 01:10 UTCGHSA enrichment
  13. 2026-08-06 20:49 UTCGHSA enrichment
  14. 2026-08-06 16:28 UTCEG score recompute
  15. 2026-08-06 16:28 UTCGHSA enrichment
  16. 2026-08-06 13:46 UTCEPSS rescore
  17. 2026-08-06 12:07 UTCGHSA enrichment
  18. 2026-08-06 07:46 UTCGHSA enrichment
  19. 2026-08-06 03:25 UTCGHSA enrichment
  20. 2026-08-05 23:05 UTCEG score recompute
  21. 2026-08-05 23:05 UTCGHSA enrichment
  22. 2026-08-05 18:44 UTCGHSA enrichment
  23. 2026-08-05 17:25 UTCCISA KEV update
  24. 2026-08-05 14:23 UTCGHSA enrichment
  25. 2026-08-05 10:02 UTCGHSA enrichment
Show 75 more
  1. 2026-08-05 05:41 UTCGHSA enrichment
  2. 2026-08-05 01:20 UTCGHSA enrichment
  3. 2026-08-04 20:59 UTCGHSA enrichment
  4. 2026-08-04 17:02 UTCCISA KEV update
  5. 2026-08-04 16:39 UTCEG score recompute
  6. 2026-08-04 16:39 UTCGHSA enrichment
  7. 2026-08-04 15:09 UTCEPSS rescore
  8. 2026-08-04 12:18 UTCEG score recompute
  9. 2026-08-04 12:18 UTCGHSA enrichment
  10. 2026-08-04 10:37 UTCEPSS rescore
  11. 2026-08-04 07:55 UTCGHSA enrichment
  12. 2026-08-04 03:34 UTCGHSA enrichment
  13. 2026-08-03 23:13 UTCGHSA enrichment
  14. 2026-08-03 19:22 UTCCISA KEV update
  15. 2026-08-03 18:52 UTCGHSA enrichment
  16. 2026-08-03 14:31 UTCEG score recompute
  17. 2026-08-03 14:31 UTCGHSA enrichment
  18. 2026-08-03 10:35 UTCEPSS rescore
  19. 2026-08-03 10:09 UTCGHSA enrichment
  20. 2026-08-03 05:47 UTCGHSA enrichment
  21. 2026-08-03 01:25 UTCGHSA enrichment
  22. 2026-08-02 21:05 UTCGHSA enrichment
  23. 2026-08-02 16:44 UTCGHSA enrichment
  24. 2026-08-02 12:24 UTCGHSA enrichment
  25. 2026-08-02 08:03 UTCGHSA enrichment
  26. 2026-08-02 03:42 UTCEG score recompute
  27. 2026-08-02 03:42 UTCGHSA enrichment
  28. 2026-08-02 02:26 UTCEPSS rescore
  29. 2026-08-01 23:21 UTCGHSA enrichment
  30. 2026-08-01 19:00 UTCGHSA enrichment
  31. 2026-08-01 14:39 UTCGHSA enrichment
  32. 2026-08-01 10:18 UTCGHSA enrichment
  33. 2026-08-01 05:57 UTCEG score recompute
  34. 2026-08-01 05:57 UTCGHSA enrichment
  35. 2026-08-01 04:15 UTCEPSS rescore
  36. 2026-08-01 01:35 UTCGHSA enrichment
  37. 2026-07-31 21:11 UTCGHSA enrichment
  38. 2026-07-31 16:50 UTCGHSA enrichment
  39. 2026-07-31 12:29 UTCGHSA enrichment
  40. 2026-07-31 08:09 UTCGHSA enrichment
  41. 2026-07-31 03:48 UTCGHSA enrichment
  42. 2026-07-30 23:27 UTCGHSA enrichment
  43. 2026-07-30 19:06 UTCEG score recompute
  44. 2026-07-30 19:06 UTCGHSA enrichment
  45. 2026-07-30 16:27 UTCEPSS rescore
  46. 2026-07-30 14:43 UTCGHSA enrichment
  47. 2026-07-30 10:22 UTCEG score recompute
  48. 2026-07-30 10:22 UTCGHSA enrichment
  49. 2026-07-30 06:00 UTCGHSA enrichment
  50. 2026-07-30 01:40 UTCEG score recompute
  51. 2026-07-30 01:40 UTCGHSA enrichment
  52. 2026-07-30 01:29 UTCEPSS rescore
  53. 2026-07-29 21:18 UTCGHSA enrichment
  54. 2026-07-29 19:27 UTCCISA KEV update
  55. 2026-07-29 16:56 UTCGHSA enrichment
  56. 2026-07-29 12:35 UTCGHSA enrichment
  57. 2026-07-29 08:14 UTCGHSA enrichment
  58. 2026-07-29 03:51 UTCGHSA enrichment
  59. 2026-07-28 23:29 UTCGHSA enrichment
  60. 2026-07-28 19:08 UTCEG score recompute
  61. 2026-07-28 19:07 UTCGHSA enrichment
  62. 2026-07-28 15:35 UTCEPSS rescore
  63. 2026-07-28 14:47 UTCGHSA enrichment
  64. 2026-07-28 10:24 UTCGHSA enrichment
  65. 2026-07-28 06:03 UTCGHSA enrichment
  66. 2026-07-28 01:42 UTCGHSA enrichment
  67. 2026-07-27 21:21 UTCGHSA enrichment
  68. 2026-07-27 19:24 UTCCISA KEV update
  69. 2026-07-27 17:17 UTCCISA KEV update
  70. 2026-07-27 16:58 UTCEG score recompute
  71. 2026-07-27 16:58 UTCGHSA enrichment
  72. 2026-07-27 12:37 UTCGHSA enrichment
  73. 2026-07-27 08:16 UTCGHSA enrichment
  74. 2026-07-27 03:56 UTCGHSA enrichment
  75. 2026-07-26 23:34 UTCGHSA enrichment

Frequently asked(6)

What is CVE-2025-3928?
CVE-2025-3928 is a critical vulnerability published on April 25, 2025. 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…
When was CVE-2025-3928 disclosed?
CVE-2025-3928 was first published in the National Vulnerability Database on April 25, 2025, with the most recent update on October 31, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-3928 actively exploited?
Yes. CISA added CVE-2025-3928 to the Known Exploited Vulnerabilities catalog on April 28, 2025, affecting Commvault Web Server. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2025-3928?
CVE-2025-3928 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2025-3928?
CVE-2025-3928 affects Commvault Web Server. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2025-3928?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-3928, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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