Medium severity · published May 13, 2026
CVE-2026-40703
BIG-IP Configuration utility CSRF vulnerability
5.4
CVSS
0.1%
EPSS
No
On KEV
Description
A cross-site request forgery (CSRF) vulnerability exists in the dashboard of the BIG-IP Configuration utility. 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:R/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 1% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
BIG-IP · F5
17.5.0 before 17.5.1.4; 17.1.0 before 17.1.3.1; 16.1.0 · source: vendor
BA
Big-ip Access Policy Manager · F5
17.1.0 through 17.1.3; 17.5.0 through 17.5.1; 16.1.0 through 16.1.6 · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
17.1.0 through 17.1.3; 17.5.0 through 17.5.1; 16.1.0 through 16.1.6 · source: NVD
BA
Big-ip Advanced Web Application Firewall · F5
17.1.0 through 17.1.3; 17.5.0 through 17.5.1; 16.1.0 through 16.1.6 · source: NVD
BA
Big-ip Analytics · F5
17.1.0 through 17.1.3; 17.5.0 through 17.5.1; 16.1.0 through 16.1.6 · source: NVD
BA
Big-ip Application Acceleration Manager · F5
17.1.0 through 17.1.3; 17.5.0 through 17.5.1; 16.1.0 through 16.1.6 · source: NVD
BA
Big-ip Application Security Manager · F5
17.1.0 through 17.1.3; 17.5.0 through 17.5.1; 16.1.0 through 16.1.6 · source: NVD
BA
Big-ip Application Visibility And Reporting · F5
17.1.0 through 17.1.3; 17.5.0 through 17.5.1; 16.1.0 through 16.1.6 · source: NVD
BA
Big-ip Automation Toolchain · F5
17.1.0 through 17.1.3; 17.5.0 through 17.5.1; 16.1.0 through 16.1.6 · source: NVD
BC
Big-ip Carrier-grade Nat · F5
17.1.0 through 17.1.3; 17.5.0 through 17.5.1; 16.1.0 through 16.1.6 · source: NVD
BC
Big-ip Container Ingress Services · F5
17.1.0 through 17.1.3; 17.5.0 through 17.5.1; 16.1.0 through 16.1.6 · source: NVD
BD
Big-ip Ddos Hybrid Defender · F5
17.1.0 through 17.1.3; 17.5.0 through 17.5.1; 16.1.0 through 16.1.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-40703
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-40703
Mitigation
https://my.f5.com/manage/s/article/K35544022
More from BIG-IP
9.8
CVE-2026-94127
BIG-IP APM OAuth vulnerability
9.8
CVE-2025-53521
BigIP APM Vulnerability
9.8
CVE-2023-46747
BIG-IP Configuration utility unauthenticated remote code execution vulnerability
9.8
CVE-2022-1388
F5 BIG-IP Missing Authentication Vulnerability
9.8
CVE-2021-22991
F5 BIG-IP Traffic Management Microkernel Buffer Overflow