{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20732","assignerOrgId":"9dacffd4-cb11-413f-8451-fbbfd4ddc0ab","state":"PUBLISHED","assignerShortName":"f5","dateReserved":"2026-01-21T21:33:16.381Z","datePublished":"2026-02-04T15:02:05.281Z","dateUpdated":"2026-02-04T16:08:05.470Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unknown","modules":["All Modules"],"product":"BIG-IP","vendor":"F5","versions":[{"lessThan":"*","status":"unaffected","version":"21.0.0","versionType":"custom"},{"lessThan":"17.5.1.4","status":"affected","version":"17.5.0","versionType":"custom"},{"lessThan":"17.1.3.1","status":"affected","version":"17.1.0","versionType":"custom"},{"lessThan":"*","status":"affected","version":"16.1.0","versionType":"custom"}]}],"credits":[{"lang":"en","type":"finder","value":"F5 acknowledges Michał Majchrowicz, Marcin Wyczechowski, and Zbigniew Piotrak (members of the AFINE Team) for bringing this issue to our attention and following the highest standards of coordinated disclosure."}],"datePublic":"2026-02-04T15:00:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<span style=\"background-color: rgb(255, 255, 255);\">A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages.&nbsp;&nbsp;</span>Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."}],"value":"A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.1,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]},{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":2.3,"baseSeverity":"LOW","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-451","description":"CWE-451: User Interface (UI) Misrepresentation of Critical Information","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"9dacffd4-cb11-413f-8451-fbbfd4ddc0ab","shortName":"f5","dateUpdated":"2026-02-04T15:02:05.281Z"},"references":[{"tags":["vendor-advisory"],"url":"https://my.f5.com/manage/s/article/K000156644"}],"source":{"discovery":"EXTERNAL"},"title":"BIG-IP Configuration utility vulnerability","x_generator":{"engine":"F5 SIRTBot v1.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-04T16:07:17.980958Z","id":"CVE-2026-20732","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-02-04T16:08:05.470Z"}}]}}