Vulnerability · CVE-2026-2507
When BIG-IP AFM or BIG-IP DDoS is provisioned, undisclosed traffic can cause TMM to terminate.
Published Feb 18, 2026 · catalog updated Feb 18, 2026 · F5 BIG-IP
Last checked Nov 12, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-2507. EPSS is 0.33%. 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
- CVE-2025-61990 · High
- CVE-2025-61933 · Medium
- CVE-2025-61935 · High
- CVE-2025-58071 · High
- CVE-2025-59483 · High
- Severity
- High8.7
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.33%
- Remediation
- Version ranges on file
- Affected products
- vendor F5 BIG-IP 17.5.1.4 <*
When BIG-IP AFM or BIG-IP DDoS is provisioned, undisclosed traffic can cause TMM to terminate. 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 17.5.1.4 <*17.5.1.4 <*
How to fix CVE-2026-2507
Upgrade
CVE-2026-2507 lists a fix boundary at *. Compare the installed build with that boundary before you change production.
Version check
Seen in 17.5.1.4 <*
Advisory
Open the cve_org record and follow its fix.
Official advisories
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-2026-2507. EPSS is 0.33%. 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 17.5.1.4 <* 17.5.1.4 <*. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.33%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
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.
Feb 18, 2026 · EUVD
Detected
When BIG-IP AFM or BIG-IP DDoS is provisioned, undisclosed traffic can cause TMM to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Feb 18, 2026 · EUVD
Updated
When BIG-IP AFM or BIG-IP DDoS is provisioned, undisclosed traffic can cause TMM to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Sources
- CVE.orgVulnerability recordCVE-2026-2507
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-2507
30-day exploitation probability 0.33%
first.org - EUVDVulnerability recordEUVD-2026-7911
When BIG-IP AFM or BIG-IP DDoS is provisioned, undisclosed traffic can cause TMM to terminate. 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 Nov 12, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSNov 9, 2026
- CVE.orgNov 9, 2026
- EUVDNov 9, 2026