How severe is CVE-2025-34028?

No CVSS score has been assigned to CVE-2025-34028 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2025-34028?

Affected package information for CVE-2025-34028 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2025-34028?

No fixed release is recorded for CVE-2025-34028 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

How do I detect CVE-2025-34028 in my code and dependencies?

Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

How do I mitigate CVE-2025-34028 if there is no patch (or I can't update yet)?

Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Is CVE-2025-34028 actively exploited in the wild?

Yes. There are 1 known exploit references for CVE-2025-34028, including . All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2025-34028?

CVE-2025-34028 has an EPSS (Exploit Prediction Scoring System) score of 97.6%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2025-34028 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2025-34028 (Commvault Command Center Path Traversal Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2025-05-02. CISA required all US federal civilian agencies to remediate this vulnerability by 2025-05-23. The required action was: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2025-34028?

CVE-2025-34028 is classified as Path Traversal (CWE-22), Missing Authentication (CWE-306). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

Is there exploit tooling available for CVE-2025-34028?

A Nuclei detection template exists for CVE-2025-34028, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2025-34028 published, and has it been updated?

CVE-2025-34028 was published on April 22, 2025 and was last updated on November 29, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV · ACTIVELY EXPLOITED

CVE-2025-34028 — Watchtowrlabs

CVE-2025-34028 is a Path Traversal vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2025-05-02) — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.

The Commvault Command Center Innovation Release allows an unauthenticated actor to upload ZIP files that represent install packages that, when expanded by the target server, are vulnerable…

Published

Apr 22, 2025

Updated

Nov 29, 2025

Affected

1 product

Patched

See advisory

Exploits

1 known

Exploitation data as of Oct 22, 2026 · OSV.dev, NVD, CISA KEV, FIRST.org (EPSS)

Exploitation Status

Actively exploited in the wild

Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2025-05-02. Federal agencies were required to remediate by 2025-05-23.
CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2025-34028.

EPSS Exploitation Probability

via FIRST.org ↗

97.6%probability of exploitation in next 30 days

Very High Risk0.00%

Lower risk than most CVEs100th percentile — riskier than 100% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Description

This issue affects Command Center Innovation Release: 11.38.0 to 11.38.20. The vulnerability is fixed in 11.38.20 with SP38-CU20-433 and SP38-CU20-436 and also fixed in 11.38.25 with SP38-CU25-434 and SP38-CU25-438.

Affected Products

1 product · 1 configurations

Application

commvaultcommvault

≥ 11.38.0 && < 11.38.20

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

watchtowrlabs/watchTowr-vs-Commvault-PreAuth-RCE-CVE-2025-34028

⭐ 21🍴 8Aug 2026

Detection & mitigation playbook

Vulnerability

Detect
Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).
Remediation status
No fixed release is recorded for CVE-2025-34028 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.
Mitigate without a patch
Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

How to detect CVE-2025-34028

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id cve-2025-34028 -u https://target

Template: Commvault - SSRF via /commandcenter/deployWebpackage.do
Severity: critical
Impact: Unauthenticated attackers can exploit SSRF through ZIP file uploads containing path traversal sequences, potentially leading to remote code execution on the Commvault server.
Remediation: Apply the security patch as described in Commvault's security advisory for Command Center Innovation Release 11.38.

Template by ProjectDiscovery nuclei-templates (DhiyaneshDk, abhishekrautela), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

The Commvault Command Center Innovation Release allows an unauthenticated actor to upload ZIP files that represent install packages that, when expanded by the target server, are vulnerable to path traversal vulnerability that can result in Remote Code Execution via malicious JSP. This issue affects Command Center Innovation Release: 11.38.0 to 11.38.20. The vulnerability is fixed in 11.38.20 with SP38-CU20-433 and SP38-CU20-436 and also fixed in 11.38.25 with SP38-CU25-434 and SP38-CU25-438.

O3 Security · Impact-Aware SCA

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