CVE-2025-3928: Commvault Web Server unspecified vulnerability
Noroxi assessment
Priority: This week (action score 65/100)
- CISA has confirmed exploitation in the wild (Apr 28, 2025). Remediation deadline for US federal agencies: May 19, 2025.
- Probability of exploitation in the next 30 days: 2.5% (FIRST EPSS); higher than 84.8% of all records.
- Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
- Fixed version: Commvault Web Server 11.36.46.
Don’t wait for the next maintenance window. Upgrade to Commvault Web Server 11.36.46 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS
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.
- Published
- Apr 25, 2025
- Updated
- Oct 8, 2026
- EPSS
- 2.5% · 84th percentile
- CWE
- CWE-94
Report tools
Action score
65
This week
Don’t wait for the next maintenance window.
- CVSS
- 34 / 40 · 8.7 / 10
- CISA KEV
- 30 / 30 · Listed
- EPSS
- 1 / 30 · 2.5%
CISA SSVC decision
- Exploitation
- active
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- —
- CNA · cisa-cg
- 8.8
- NVD has not scored this yet; the score shown is the CNA’s.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Actively exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on Apr 28, 2025. That signals real attacks, not theory.
Remediation deadline for US federal agencies: May 19, 2025.
Get told when this record changes
- In CISA KEV: exploitation in the wild confirmed
- Weaponized exploit exists
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| commvault | commvault | cpe:2.3:a:commvault:commvault |
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
| microsoft | windows | cpe:2.3:o:microsoft:windows |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- commvault commvault11.20.0 and later · before 11.20.217
- commvault commvault11.28.0 and later · before 11.28.141
- commvault commvault11.32.0 and later · before 11.32.89
- commvault commvault11.36.0 and later · before 11.36.46
Versions reported by the vendor
Affected version ranges reported by the assigning authority (cisa-cg). Independent of NVD's CPE analysis and usually ahead of it.
Commvault Web Server
- 11.36.46, 11.32.89, 11.28.141, 11.20.217not affected
- 11.36.0 and later · before 11.36.46affected
- 11.32.0 and later · before 11.32.89affected
- 11.28.0 and later · before 11.28.141affected
- 11.20.0 and later · before 11.20.217affected
Same product
commvault: all recordsOther highest-scoring records for the same primary product.
- CVE-2025-34028Commvault Command Center Innovation Release <= 11.38.25 Unathenticated Install Package Path TraversalKEV96Now
- CVE-2025-57791Argument Injection Vulnerability in CommServe60This week
- CVE-2025-57788Unauthorized API Access Risk60This week
Published before and after this one in the same product
- ← EarlierCVE-2017-18044Jan 19, 2018 · A Command Injection issue was discovered in ContentStore/Base/CVDataPipe.dll in Commvault before v11 SP6.60This week
- Later →CVE-2024-13975Jul 25, 2025 · Commvault 11.20.0 - 11.36.0 Windows Access Nodes Compromise via Local File Server Agent Abuse34Monitor
- Later →CVE-2025-34136Jul 25, 2025 · Commvault CommServe Web Server Unauthenticated SQL Injection27Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Commvault Web Server | 11.36.46 · description | Vendor (CNA) |
Exploit status
Weaponized
A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- CISA KEV+2 d
- TodayOct 30, 2026+553 d
No history yet (it accumulates with the daily EPSS job).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- Integrity
- Availability
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- X
Weakness class (CWE)
CWE-94 · Improper Control of Generation of Code ('Code Injection')CVSS vector
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (7 more)Show less
- www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-3928
- www.cisa.gov/news-events/alerts/2025/05/22/advisory-update-cyber-threat-activity-targeting-commvaults-saas-cloud-application-metallic
- www.commvault.com/blogs/customer-security-update
- www.commvault.com/blogs/notice-security-advisory-update
- www.commvault.com/blogs/security-advisory-march-7-2025
- www.bleepingcomputer.com/news/security/commvault-says-recent-breach-didnt-impact-customer-backup-data/
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3928
Vendor advisories and official records. Exploit/PoC links are deliberately left out.