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 — 3 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) — the reason this is sooner than the SSVC decision on this page at low or medium mission impact
CISA-KEV: ExploitedEPSS PROB: 2.5%CVSS: 8.8Exploit: No code on recordExposed services: Not assessed

The CVE record names the fixed release — apply it.

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
9.0CRITICALhigh confidence
EG Risk
81
EG Risk 81/100

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 (value × EchelonGraph’s weight)
Severity90% × 45%
The EG Score, 9.0 of 10.
Exploitation100% × 40%
Fixed at 100% for a CISA KEV listing: EchelonGraph's rule.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Attend at medium and Act at high mission impact.
Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: The CVE record names the fixed release. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.
EPSS PROB
2.5%
EPSS %ILE
84th
KEV
⚠ Exploited

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Attend at medium and Act at high mission impact.

The CVE record names the fixed release. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.

Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days & forensic triage if the affected system is publicly exposed; 14 days if it is not.

In CISA KEV yes (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

April 25, 2025

Last Modified

October 8, 2026

Advisory Details (7)

Auto-updated Jun 2, 2026
⚠️ Actively exploited (CISA KEV). Fix named in the CVE record. Sources: cisa.
cisa🔴 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

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

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

Vendor Advisories for CVE-2025-3928(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 57× in last 7d / 232× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 99 of 1,016 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 917 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 15:11 UTCEG score recompute
  2. 2026-10-11 15:11 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  3. 2026-10-11 13:47 UTCEPSS rescoreEPSS 2.5% · 84th percentile
  4. 2026-10-11 10:50 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  5. 2026-10-11 06:29 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  6. 2026-10-11 02:07 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  7. 2026-10-10 21:45 UTCEG score recompute
  8. 2026-10-10 21:45 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  9. 2026-10-10 19:59 UTCEPSS rescoreEPSS 2.5% · 84th percentile
  10. 2026-10-10 17:23 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  11. 2026-10-10 13:02 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  12. 2026-10-10 08:41 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  13. 2026-10-10 04:20 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  14. 2026-10-09 23:59 UTCEG score recompute
  15. 2026-10-09 23:59 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  16. 2026-10-09 20:06 UTCEPSS rescoreEPSS 2.5% · 84th percentile
  17. 2026-10-09 19:37 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  18. 2026-10-09 15:17 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  19. 2026-10-09 10:55 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  20. 2026-10-09 06:32 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  21. 2026-10-09 02:12 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  22. 2026-10-08 21:50 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  23. 2026-10-08 17:29 UTCEG score recompute
  24. 2026-10-08 17:29 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  25. 2026-10-08 17:09 UTCEPSS rescoreEPSS 2.5% · 84th percentile
Show 74 more
  1. 2026-10-08 13:07 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  2. 2026-10-08 12:02 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  3. 2026-10-08 07:41 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  4. 2026-10-08 03:20 UTCEG score recompute
  5. 2026-10-08 03:20 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  6. 2026-10-07 23:46 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
  7. 2026-10-07 22:59 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  8. 2026-10-07 18:38 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  9. 2026-10-07 18:02 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  10. 2026-10-07 17:36 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  11. 2026-10-07 13:16 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  12. 2026-10-07 08:55 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  13. 2026-10-07 04:34 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  14. 2026-10-07 00:14 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  15. 2026-10-06 19:52 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  16. 2026-10-06 15:32 UTCEG score recompute
  17. 2026-10-06 15:31 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  18. 2026-10-06 15:16 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
  19. 2026-10-06 11:11 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  20. 2026-10-06 06:50 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  21. 2026-10-06 02:29 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  22. 2026-10-05 22:07 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  23. 2026-10-05 17:46 UTCEG score recompute
  24. 2026-10-05 17:46 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  25. 2026-10-05 17:42 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
  26. 2026-10-05 13:26 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  27. 2026-10-05 09:04 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  28. 2026-10-05 04:44 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  29. 2026-10-05 00:23 UTCEG score recompute
  30. 2026-10-05 00:22 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  31. 2026-10-04 23:21 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
  32. 2026-10-04 20:00 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  33. 2026-10-04 15:39 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  34. 2026-10-04 11:18 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  35. 2026-10-04 06:57 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  36. 2026-10-04 02:36 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  37. 2026-10-03 22:15 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  38. 2026-10-03 17:54 UTCEG score recompute
  39. 2026-10-03 17:54 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  40. 2026-10-03 14:24 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
  41. 2026-10-03 13:32 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  42. 2026-10-03 09:10 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  43. 2026-10-03 04:47 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  44. 2026-10-03 00:26 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  45. 2026-10-02 20:05 UTCEG score recompute
  46. 2026-10-02 20:05 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  47. 2026-10-02 15:43 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  48. 2026-10-02 11:22 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  49. 2026-10-02 07:00 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  50. 2026-10-02 02:39 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  51. 2026-10-01 22:18 UTCEG score recompute
  52. 2026-10-01 22:17 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  53. 2026-10-01 19:49 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
  54. 2026-10-01 17:54 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  55. 2026-10-01 13:33 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  56. 2026-10-01 09:13 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  57. 2026-10-01 04:52 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  58. 2026-10-01 00:29 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  59. 2026-09-30 20:08 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  60. 2026-09-30 15:48 UTCEG score recompute
  61. 2026-09-30 15:48 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  62. 2026-09-30 15:02 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
  63. 2026-09-30 11:27 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  64. 2026-09-30 07:06 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  65. 2026-09-30 02:42 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  66. 2026-09-29 22:21 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  67. 2026-09-29 17:59 UTCEG score recompute
  68. 2026-09-29 17:59 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  69. 2026-09-29 13:35 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  70. 2026-09-29 09:14 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  71. 2026-09-29 04:52 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  72. 2026-09-29 00:31 UTCEG score recompute
  73. 2026-09-29 00:31 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8
  74. 2026-09-28 20:09 UTCGHSA enrichmentGHSA-wqxv-v2vg-q37x · GitHub severity HIGH · GitHub CVSS 8.8

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2025-3928?
CVE-2025-3928 is a critical-severity vulnerability; its CVE record was 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 the CVE record for CVE-2025-3928 published?
The CVE record for CVE-2025-3928 was published on April 25, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 8, 2026; the record at its source may have been updated since.
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 attention. The CVE record names the fixed release. Apply it.
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 (CRITICAL).
Which products are affected by CVE-2025-3928?
CVE-2025-3928 affects Commvault Web Server.
How do I remediate CVE-2025-3928?
The CVE record for CVE-2025-3928 names the fix: "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." The vendor advisories EchelonGraph has for CVE-2025-3928 are linked in the Vendor Advisories panel on this page.

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