High severity · published Feb 18, 2026
CVE-2026-2507
BIG-IP TMM Vulnerability
7.5
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
BIG-IP · F5
17.5.1.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2507
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2507
my.f5.com
https://my.f5.com/manage/s/article/K000160003
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