6.1

CVE-2025-61933: f5 big-ip Cross-site Scripting

CVSS: 6.1v3.1MediumAnalyzed
Published 15-10-2025Last modified 26-02-2026
Open JSON

Vulnerability summary

CVE-2025-61933 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in f5 big-ip. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.4% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.20%
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. 15-10-2025
    PublishedVulnerability first disclosed.
  2. 26-02-2026
    Last modifiedVulnerability information updated.

Description

A reflected cross-site scripting (XSS) vulnerability exists in an undisclosed page of BIG-IP APM that allows an attacker to run JavaScript in the context of the targeted logged-out user.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

0.00 pp

From 0.20% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.20%

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

F52 products
  • big-ip≥ 17.5.0, < 17.5.1.3 | ≥ 17.1.0, < 17.1.3 | ≥ 16.1.0, < 16.1.6.1 | ≥ 15.1.0, < 15.1.10.8
  • big-ip_access_policy_manager≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.3

1 vendor · 2 products

References

1 links