CVE-2026-42924: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in F5 BIG-IP
An authenticated attacker with the Resource Administrator or Administrator role can create SNMP configuration objects through iControl SOAP resulting in privilege escalation. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-42924) in F5 BIG-IP involves improper neutralization of special elements used in OS commands (CWE-78), allowing an authenticated attacker with Resource Administrator or Administrator roles to create SNMP configuration objects through the iControl SOAP interface. Exploitation results in privilege escalation, compromising confidentiality and integrity of the system. The affected versions include 16.1.0, 17.1.0, 17.5.0, and 21.0.0. The CVSS v3.1 base score is 8.7, indicating high severity. The vulnerability is published and assigned by F5 but currently lacks an official remediation or patch. No known exploits in the wild have been reported.
Potential Impact
Successful exploitation allows an authenticated user with elevated roles to escalate privileges by injecting OS commands through SNMP configuration creation via iControl SOAP. This can lead to full compromise of confidentiality and integrity of the affected BIG-IP system. Availability impact is not indicated. The vulnerability affects on-premises BIG-IP versions specified and does not apply to cloud services.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, users should restrict access to iControl SOAP interfaces to trusted administrators only and monitor for unusual activity. Follow F5's official advisories for updates on patches or mitigations. Do not assume the vulnerability is mitigated without vendor confirmation.
CVE-2026-42924: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in F5 BIG-IP
Description
An authenticated attacker with the Resource Administrator or Administrator role can create SNMP configuration objects through iControl SOAP resulting in privilege escalation. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-42924) in F5 BIG-IP involves improper neutralization of special elements used in OS commands (CWE-78), allowing an authenticated attacker with Resource Administrator or Administrator roles to create SNMP configuration objects through the iControl SOAP interface. Exploitation results in privilege escalation, compromising confidentiality and integrity of the system. The affected versions include 16.1.0, 17.1.0, 17.5.0, and 21.0.0. The CVSS v3.1 base score is 8.7, indicating high severity. The vulnerability is published and assigned by F5 but currently lacks an official remediation or patch. No known exploits in the wild have been reported.
Potential Impact
Successful exploitation allows an authenticated user with elevated roles to escalate privileges by injecting OS commands through SNMP configuration creation via iControl SOAP. This can lead to full compromise of confidentiality and integrity of the affected BIG-IP system. Availability impact is not indicated. The vulnerability affects on-premises BIG-IP versions specified and does not apply to cloud services.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, users should restrict access to iControl SOAP interfaces to trusted administrators only and monitor for unusual activity. Follow F5's official advisories for updates on patches or mitigations. Do not assume the vulnerability is mitigated without vendor confirmation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- f5
- Date Reserved
- 2026-04-30T23:04:10.882Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a049713cbff5d8610dffe01
Added to database: 5/13/2026, 3:21:55 PM
Last enriched: 5/13/2026, 3:39:15 PM
Last updated: 5/14/2026, 5:48:13 AM
Views: 7
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