Input validation error in BIG-IP AFM and BIG-IP DDHD - CVE-2026-2507
Published: February 19, 2026
Vulnerability identifier: #VU123088
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-2507
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send specially crafted traffic to the device and perform a denial of service (DoS) attack.
Affected software
BIG-IP AFM
BIG-IP DDHD
BIG-IP DDHD
How to mitigate CVE-2026-2507
Install updates from vendor's website.
BIG-IP AFM - update to 17.5.1.4.0.17.20
BIG-IP DDHD - update to 17.5.1.4.0.17.20
BIG-IP DDHD - update to 17.5.1.4.0.17.20