🛡️ CVE-2026-42937 — big-ip-access-policy-manager

🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-732 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Incorrect permission assignment vulnerabilities exist in BIG-IP and BIG-IQ TMOS Shell (tmsh) arp and ndp commands, and in BIG-IP iControl REST. These vulnerabilities may allow an authenticated attacker to view adjacent network information. 

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Weakness class

CVE-2026-42937 is classified as CWE-732: Incorrect Permission Assignment for Critical Resource. A sensitive resource is assigned permissions that let unintended actors read or modify it.

Affected software

CVE-2026-42937 is recorded against 22 packages.

  • big-ip-access-policy-manager (from 17.5.0 up to 17.5.1.4)
  • big-ip-advanced-firewall-manager (from 17.5.0 up to 17.5.1.4)
  • big-ip-advanced-web-application-firewall (from 17.5.0 up to 17.5.1.4)
  • big-ip-analytics (from 17.5.0 up to 17.5.1.4)
  • big-ip-application-acceleration-manager (from 17.5.0 up to 17.5.1.4)
  • big-ip-application-security-manager (from 17.5.0 up to 17.5.1.4)
  • big-ip-application-visibility-and-reporting (from 17.5.0 up to 17.5.1.4)
  • big-ip-automation-toolchain (from 17.5.0 up to 17.5.1.4)
  • big-ip-carrier-grade-nat (from 17.5.0 up to 17.5.1.4)
  • big-ip-container-ingress-services (from 17.5.0 up to 17.5.1.4)
  • big-ip-ddos-hybrid-defender (from 17.5.0 up to 17.5.1.4)
  • big-ip-domain-name-system (from 17.5.0 up to 17.5.1.4)
  • big-ip-edge-gateway (from 17.5.0 up to 17.5.1.4)
  • big-ip-fraud-protection-service (from 17.5.0 up to 17.5.1.4)
  • big-ip-global-traffic-manager (from 17.5.0 up to 17.5.1.4)
  • big-ip-link-controller (from 17.5.0. up to 17.5.1.4)
  • big-ip-local-traffic-manager (from 17.5.0 up to 17.5.1.4)
  • big-ip-policy-enforcement-manager (from 17.5.0 up to 17.5.1.4)
  • big-ip-ssl-orchestrator (from 17.5.0 up to 17.5.1.4)
  • big-ip-webaccelerator (from 17.5.0 up to 17.5.1.4)
  • big-ip-websafe (from 17.5.0 up to 17.5.1.4)
  • unknown

Timeline and source

Published on 13 May 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

my.f5.com

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE CWE-732
Public Exploit ✅ No
Source NVD
Published 2026-05-13
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
big-ip-access-policy-manager 17.5.0 17.5.1.4
big-ip-advanced-firewall-manager 17.5.0 17.5.1.4
big-ip-advanced-web-application-firewall 17.5.0 17.5.1.4
big-ip-analytics 17.5.0 17.5.1.4
big-ip-application-acceleration-manager 17.5.0 17.5.1.4
big-ip-application-security-manager 17.5.0 17.5.1.4
big-ip-application-visibility-and-reporting 17.5.0 17.5.1.4
big-ip-automation-toolchain 17.5.0 17.5.1.4
big-ip-carrier-grade-nat 17.5.0 17.5.1.4
big-ip-container-ingress-services 17.5.0 17.5.1.4
big-ip-ddos-hybrid-defender 17.5.0 17.5.1.4
big-ip-domain-name-system 17.5.0 17.5.1.4
big-ip-edge-gateway 17.5.0 17.5.1.4
big-ip-fraud-protection-service 17.5.0 17.5.1.4
big-ip-global-traffic-manager 17.5.0 17.5.1.4
big-ip-link-controller 17.5.0. 17.5.1.4
big-ip-local-traffic-manager 17.5.0 17.5.1.4
big-ip-policy-enforcement-manager 17.5.0 17.5.1.4
big-ip-ssl-orchestrator 17.5.0 17.5.1.4
big-ip-webaccelerator 17.5.0 17.5.1.4
big-ip-websafe 17.5.0 17.5.1.4
unknown

References

Mitigation, Vendor Advisory https://my.f5.com/manage/s/article/K000161018

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