1. Home
  2. CVE Database
  3. CVE-2026-42919
MEDIUM · 6.7

CVE-2026-42919

A vulnerability exists in BIG-IP systems that may allow an authenticated attacker with administrative access to escalate their privileges. A successful exploit may allow the attacker to cross a securi...

Vulnerability Description

A vulnerability exists in BIG-IP systems that may allow an authenticated attacker with administrative access to escalate their privileges. A successful exploit may allow the attacker to cross a security boundary.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS Score

6.7

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
F5Big-Ip Access Policy Manager>= 17.1.0, <= 17.1.3
F5Big-Ip Advanced Firewall Manager>= 17.1.0, <= 17.1.3
F5Big-Ip Advanced Web Application Firewall>= 17.1.0, <= 17.1.3
F5Big-Ip Analytics>= 17.1.0, <= 17.1.3
F5Big-Ip Application Acceleration Manager>= 17.1.0, <= 17.1.3
F5Big-Ip Application Security Manager>= 17.1.0, <= 17.1.3
F5Big-Ip Application Visibility And Reporting>= 17.1.0, <= 17.1.3
F5Big-Ip Automation Toolchain>= 17.1.0, <= 17.1.3
F5Big-Ip Carrier-Grade Nat>= 17.1.0, <= 17.1.3
F5Big-Ip Container Ingress Services>= 17.1.0, <= 17.1.3
F5Big-Ip Ddos Hybrid Defender>= 17.1.0, <= 17.1.3
F5Big-Ip Domain Name System>= 17.1.0, <= 17.1.3
F5Big-Ip Edge Gateway>= 17.1.0, <= 17.1.3
F5Big-Ip Fraud Protection Service>= 17.1.0, <= 17.1.3
F5Big-Ip Global Traffic Manager>= 17.1.0, <= 17.1.3
F5Big-Ip Link Controller>= 17.1.0, <= 17.1.3
F5Big-Ip Local Traffic Manager>= 17.1.0, <= 17.1.3
F5Big-Ip Policy Enforcement Manager>= 17.1.0, <= 17.1.3
F5Big-Ip Ssl Orchestrator>= 17.1.0, <= 17.1.3
F5Big-Ip Webaccelerator>= 17.1.0, <= 17.1.3

Related Weaknesses (CWE)

CWE-121

References

FAQ

What is CVE-2026-42919?

CVE-2026-42919 is a vulnerability with a CVSS score of 6.7 (MEDIUM). A vulnerability exists in BIG-IP systems that may allow an authenticated attacker with administrative access to escalate their privileges. A successful exploit may allow the attacker to cross a securi...

How severe is CVE-2026-42919?

CVE-2026-42919 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-42919?

Check the references section above for vendor advisories and patch information. Affected products include: F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager.