Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessObtain admin credentials
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DeliveryAuthenticate to iControl REST API
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ExploitCraft path traversal request to undisclosed endpoint
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ExecutionTraverse to target file location
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PersistDelete arbitrary file
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ImpactDisrupt system integrity or exfiltrate data
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path traversal prevention
|
| Exploitation Conditions | Exploitation requires: (1) BIG-IP deployed in Appliance mode (non-default deployment configuration); (2) Valid administrator-role account credentials for authentication to iControl REST API; (3) Network connectivity to the iControl REST endpoint (typically internal management network, but AV:N indicates remote reachability). The vulnerability does NOT require user interaction (UI:N) or special client-side conditions. Exploitation is limited to authenticated administrators only-unauthenticated remote exploitation is not possible. End-of-life BIG-IP versions are explicitly out of scope per vendor policy. |
| Impact | CVSS 6.8 (Medium) with network attack vector and high-privilege requirement substantially reduces real-world exploitability compared to the raw score. The CVSS vector (AV:N/AC:L/PR:H/UI:N/S:C) indicates network-reachable but requires high administrative privileges and low attack complexity. No EPSS score or KEV status provided, and no POC publicly identified, suggesting this is not actively exploited in the wild. The scope change (S:C) indicates the impact crosses security boundaries-an admin deleting arbitrary files could disrupt system integrity or exfiltrate sensitive data. Real risk is moderate: exploitation requires a highly privileged, authenticated insider or lateral movement post-compromise to admin-level credentials. Organizations with strong role-based access control and audit logging of admin actions face lower practical risk than those with shared admin accounts or weak privilege separation. |
| Exploit ScenarioDerived | An administrator whose credentials are compromised via phishing or password reuse attempts to delete critical system files using a crafted iControl REST API request with path traversal sequences (e.g., '../../etc/passwd'). The request is accepted due to the vulnerability in the undisclosed endpoint, allowing the attacker to traverse outside the intended directory and delete sensitive files, potentially rendering the BIG-IP appliance inoperable or exposing sensitive configuration data. |
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Alert meAnalysisAIv1 – May 13, 2026
Directory traversal vulnerability in F5 BIG-IP iControl REST endpoint when running in Appliance mode allows authenticated administrators to delete arbitrary files, crossing security boundaries. The vulnerability requires high-privilege administrator role access and network connectivity to the iControl REST interface, but no user interaction. Patch availability confirmed from F5; no active exploitation reported.
RemediationAI
Apply the vendor-released patch from F5 advisory K000160911 (https://my.f5.com/manage/s/article/K000160911). Exact patched version numbers are not specified in available data; consult the F5 advisory for supported version upgrade paths. As interim compensating controls: (1) Restrict network access to the iControl REST endpoint to trusted administrative networks using firewall rules or F5 management port restrictions-blocks remote exploitation but impacts legitimate remote administration; (2) Audit and minimize the number of accounts with administrator role privileges-reduces insider attack surface but may impact operational flexibility; (3) Enable comprehensive audit logging of all iControl REST API calls and file operations-detects exploitation post-fact but does not prevent it. Prioritize patching as the primary remediation.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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Technical ContextAI · show details
The vulnerability exists in an undisclosed iControl REST endpoint-the primary management interface for F5 BIG-IP appliances. It is a path traversal flaw (CWE-35) that permits directory traversal sequences in file path parameters, enabling an attacker to escape the intended file directory and access the filesystem hierarchy. This occurs specifically when BIG-IP is deployed in Appliance mode, a managed security appliance configuration. The iControl REST API is network-accessible, but exploitation requires prior authentication and administrator-level privileges, limiting the attack surface to trusted internal administrators or accounts compromised at the admin tier.
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Primary rating from Vendor (f5) · only source for this CVE.
CVSS VectorVendor: f5
Lifecycle Timeline
2DescriptionCVE.org
When running in Appliance mode, a directory traversal vulnerability exists in an undisclosed iControl REST endpoint that may allow an authenticated attacker with administrator role privileges to cross a security boundary and delete files. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.
Remote code execution affects F5 BIG-IP systems that terminate traffic on a virtual server configured with both an APM (
Remote code execution in F5 BIG-IP and BIG-IQ Configuration utility allows authenticated attackers with low privileges t
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Resource exhaustion in BIG-IP Configuration utility allows remote unauthenticated attackers to trigger file descriptor e
Remote unauthenticated attackers can crash F5 BIG-IP and BIG-IP Next Traffic Management Microkernel (TMM) processes via
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Traffic Management Microkernel (TMM) denial-of-service in F5 BIG-IP DNS affects systems with DNS cache-enabled profiles
F5 BIG-IP Advanced WAF and Application Security Manager (ASM) suffer from a denial-of-service vulnerability when process
Remote memory exhaustion in F5 BIG-IP virtual servers crashes Traffic Management Microkernel when HTTP/2 Layer 7 DoS Pro
Traffic Management Microkernel (TMM) crashes in F5 BIG-IP Virtual Edition and hardware platforms when SSL profiles are c
Remote denial-of-service in F5 BIG-IP allows unauthenticated attackers to crash the Traffic Management Microkernel (TMM)
Traffic Management Microkernel (TMM) in F5 BIG-IP terminates when processing specific traffic against UDP virtual server
EUVD-2026-29958
GHSA-852f-jj8m-xpxf
NVD
CVE.org
EPSS
Vulnrichment
VulDB
Exploit-DB