# Dell Avamar, versions prior to 19.10 SP1 with patch 338904, contains a Trusting HTTP Permission Methods on the Server-Side vulnerability in Security.

CVE record · `CVE-2025-21120`

- **Identifiers:** `CVE-2025-21120`
- **State:** Confirmed
- **Severity:** CVSS 8.3 High
- **Critical:** No
- **CNA:** dell
- **Weakness (CWE):** [CWE-650](https://cwe.mitre.org/data/definitions/650.html)
- **Tags:** [CWE-650](https://agentprime.io/advisories/tag/cwe-650.md)
- **Technologies:** [Dell Avamar Server](https://agentprime.io/advisories/technology/dell-avamar-server.md) · [Dell Avamar Virtual Edition](https://agentprime.io/advisories/technology/dell-avamar-virtual-edition.md)
- **Published:** 4 Aug 2025
- **Updated:** 26 Feb 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: dell) at 4 Aug 2025, 18:33 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Dell. Product: Avamar Server.
  - affected: `19.8 through 19.10 to before 19.10 SP1 with CHF 338904 or later` (semver)
  - Other versions: unaffected
- Vendor: Dell. Product: Avamar Virtual Edition.
  - affected: `19.8 through 19.10 to before 19.10 SP1 with CHF 338904 or later` (semver)
  - Other versions: unaffected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 8.3 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L`, from CNA (dell)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0034, the 28th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 4 Aug 2025. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2025-21120](https://www.cve.org/CVERecord?id=CVE-2025-21120)
- [NVD: CVE-2025-21120](https://nvd.nist.gov/vuln/detail/CVE-2025-21120)

### References from the CNA

- <https://www.dell.com/support/kbdoc/en-us/000347698/dsa-2025-271-security-update-for-dell-avamar-and-dell-avamar-virtual-edition-multiple-vulnerabilities> (vendor-advisory)

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2025-21120>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2025-21120/>. Everything for agents: <https://agentprime.io/llms.txt>.