8.3

CVE-2025-21120: dell avamar

CVSS: 8.3v3.1HighAnalyzed
Published 04-08-2025Last modified 26-02-2026
Open JSON

Vulnerability summary

CVE-2025-21120 is a high (CVSS 8.3) vulnerability in dell avamar. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.4% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.3/10
010
High · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 04-08-2025
    PublishedVulnerability first disclosed.
  2. 26-02-2026
    Last modifiedVulnerability information updated.

Description

Dell Avamar, versions prior to 19.10 SP1 with patch 338904, contains a Trusting HTTP Permission Methods on the Server-Side vulnerability in Security. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Information exposure.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

0.00 pp

From 0.29% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.29%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Dell3 products
  • avamar19.4 | 19.7 | 19.8 | 19.9 | 19.10 | 19.10:sp1 | 19.12
  • avamar_server≥ 19.8 through 19.10, < 19.10 SP1 with CHF 338904 or later
  • avamar virtual edition≥ 19.8 through 19.10, < 19.10 SP1 with CHF 338904 or later

1 vendor · 3 products

References

1 links