VulnSocial

CVE-2026-39459Disclosure(f5 / big-ip_access_policy_manager)

LOWCVSS 8.6 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A vulnerability exists in iControl REST and the TMOS Shell (tmsh) where a highly privileged, authenticated attacker with at least the Manager role can create configuration objects that allow running arbitrary commands.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

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0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-272

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • big-ip_access_policy_manager
  • big-ip_advanced_firewall_manager
  • big-ip_advanced_web_application_firewall
  • big-ip_analytics

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
f5
Products
big-ip_access_policy_managerbig-ip_advanced_firewall_managerbig-ip_advanced_web_application_firewallbig-ip_analyticsbig-ip_application_acceleration_managerbig-ip_application_security_managerbig-ip_application_visibility_and_reportingbig-ip_automation_toolchainbig-ip_carrier-grade_natbig-ip_container_ingress_services

1 version affected across 21 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-05-17: 1Technical Details · 2026-05-17: 105-17
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Israel@f1tym1
    Disclosure

    CVE-2026-39459 | F5 BIG-IP prior 17.1.3.2/17.5.1.6/21.0.0.2 iControl REST/TMOS Shell least privilege violation (K000160863 / WID-SEC-2026-1532) https://ift.tt/5bABqFu A vulnerability marked as critical has been reported in F5 BIG-IP. Affected by this vulnerability is an unknow…

    Post summary

    The post announces a critical CVE-2026-39459 in F5 BIG‑IP, detailing a least‑privilege shell vulnerability via iControl REST/TMOS, but does not provide PoC, exploit code, or mitigation information.

    0000055
    974 followersView on X
CPE platform detail42 entries

42 of 42 entries

PartVendorProductVersionTarget SWTarget HW
Appf5big-ip_access_policy_manager---
Appf5big-ip_access_policy_manager21.0.0--
Appf5big-ip_advanced_firewall_manager---
Appf5big-ip_advanced_firewall_manager21.0.0--
Appf5big-ip_advanced_web_application_firewall---
Appf5big-ip_advanced_web_application_firewall21.0.0--
Appf5big-ip_analytics---
Appf5big-ip_analytics21.0.0--
Appf5big-ip_application_acceleration_manager---
Appf5big-ip_application_acceleration_manager21.0.0--
Appf5big-ip_application_security_manager---
Appf5big-ip_application_security_manager21.0.0--
Appf5big-ip_application_visibility_and_reporting---
Appf5big-ip_application_visibility_and_reporting21.0.0--
Appf5big-ip_automation_toolchain---
Appf5big-ip_automation_toolchain21.0.0--
Appf5big-ip_carrier-grade_nat---
Appf5big-ip_carrier-grade_nat21.0.0--
Appf5big-ip_container_ingress_services---
Appf5big-ip_container_ingress_services21.0.0--
Appf5big-ip_ddos_hybrid_defender---
Appf5big-ip_ddos_hybrid_defender21.0.0--
Appf5big-ip_domain_name_system---
Appf5big-ip_domain_name_system21.0.0--
Appf5big-ip_edge_gateway---
Appf5big-ip_edge_gateway21.0.0--
Appf5big-ip_fraud_protection_service---
Appf5big-ip_fraud_protection_service21.0.0--
Appf5big-ip_global_traffic_manager---
Appf5big-ip_global_traffic_manager21.0.0--
Appf5big-ip_link_controller---
Appf5big-ip_link_controller21.0.0--
Appf5big-ip_local_traffic_manager---
Appf5big-ip_local_traffic_manager21.0.0--
Appf5big-ip_policy_enforcement_manager---
Appf5big-ip_policy_enforcement_manager21.0.0--
Appf5big-ip_ssl_orchestrator---
Appf5big-ip_ssl_orchestrator21.0.0--
Appf5big-ip_webaccelerator---
Appf5big-ip_webaccelerator21.0.0--
Appf5big-ip_websafe---
Appf5big-ip_websafe21.0.0--

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