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Vulnerabilities

Vulnerability · CVE-2025-61933

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

Published Oct 15, 2025 · catalog updated Feb 26, 2026 · F5 BIG-IP

Last checked Oct 24, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-61933. EPSS is 0.20%. Act only if a listed version of F5 BIG-IP is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium5.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.20%
Remediation
Version ranges on file
Affected products
vendor F5 BIG-IP 15.1.0 <15.1.10.8

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor F5 BIG-IP 15.1.0 <15.1.10.815.1.0 <15.1.10.8

How to fix CVE-2025-61933

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-61933. EPSS is 0.20%. Act only if a listed version of F5 BIG-IP is installed.

Which versions are affected?

Compare what you have installed with F5 BIG-IP 15.1.0 <15.1.10.8 15.1.0 <15.1.10.8. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.20%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 15, 2025 · EUVD

    Detected

    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.

  2. Feb 26, 2026 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-61933

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-61933

    30-day exploitation probability 0.20%

    first.org
  • EUVDVulnerability recordEUVD-2025-34674

    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.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 24, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 24, 2026
  • FIRST EPSSOct 24, 2026
  • EUVDOct 24, 2026