{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-40061","sourceIdentifier":"f5sirt@f5.com","published":"2026-05-13T16:16:42.283","lastModified":"2026-10-26T17:10:03.270","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"When BIG-IP DNS is provisioned, a vulnerability exists in an undisclosed iControl REST and BIG-IP TMOS Shell (tmsh) command that may allow an authenticated attacker with the Resource Administrator or Administrator role to execute arbitrary system commands with higher privileges. In Appliance mode deployments, a successful exploit can allow the attacker to cross a security boundary.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."},{"lang":"es","value":"Cuando se aprovisiona BIG-IP DNS, existe una vulnerabilidad en un comando no revelado de iControl REST y BIG-IP TMOS Shell (tmsh) que puede permitir a un atacante autenticado con el rol de Administrador de Recursos o Administrador ejecutar comandos de sistema arbitrarios con privilegios más altos. En implementaciones en modo Appliance, un exploit exitoso puede permitir al atacante cruzar un límite de seguridad. Nota: Las versiones de software que han alcanzado el Fin del Soporte Técnico (EoTS) no se evalúan."}],"affected":[{"source":"f5sirt@f5.com","affectedData":[{"vendor":"F5","product":"BIG-IP","defaultStatus":"unknown","modules":["All Modules"],"versions":[{"version":"21.1.0","lessThan":"*","versionType":"custom","status":"unaffected"},{"version":"21.0.0","lessThan":"21.0.0.1","versionType":"custom","status":"affected"},{"version":"17.5.0","lessThan":"17.5.1.4","versionType":"custom","status":"affected"},{"version":"17.1.0","lessThan":"17.1.3.1","versionType":"custom","status":"affected"},{"version":"16.1.0","lessThan":"*","versionType":"custom","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"f5sirt@f5.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":8.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"f5sirt@f5.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","baseScore":8.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.3,"impactScore":5.8}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-05-13T00:00:00+00:00","id":"CVE-2026-40061","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"f5sirt@f5.com","type":"Secondary","description":[{"lang":"en","value":"CWE-77"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*","versionStartIncluding":"16.1.0","versionEndIncluding":"16.1.6","matchCriteriaId":"8B49FF41-861D-488F-94DC-DAE222A9BE0D"},{"vulnerable":true,"criteria":"cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*","versionStartIncluding":"17.1.0","versionEndIncluding":"17.1.3","matchCriteriaId":"35FF40AC-3A3E-4B4B-83F4-BB6048FEBB72"},{"vulnerable":true,"criteria":"cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*","versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1","matchCriteriaId":"E0B21289-FB5C-47FA-B054-50341236260D"},{"vulnerable":true,"criteria":"cpe:2.3:a:f5:big-ip_domain_name_system:21.0.0:*:*:*:*:*:*:*","matchCriteriaId":"0EA3A0ED-753C-4909-8EDC-294AF6873791"}]}]}],"references":[{"url":"https://my.f5.com/manage/s/article/K000160788","source":"f5sirt@f5.com","tags":["Mitigation","Vendor Advisory"]}]}}