Medium severity · published May 13, 2026
CVE-2026-41219
BIG-IP QKView vulnerability
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
An improper sanitization vulnerability exists in the BIG-IP QKView utility that allows a low-privileged attacker to read sensitive information from a QKView file.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% 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
BI
BIG-IQ · F5
8.4.0 before 8.4.1 · 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
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41219
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-41219
Mitigation
https://my.f5.com/manage/s/article/K000157895
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