{"id":"CVE-2026-20732","state":"PUBLISHED","title":"BIG-IP Configuration utility vulnerability","description":"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.","publishedAt":"2026-02-04T15:02:05.281Z","updatedAt":"2026-02-04T16:08:05.470Z","severity":{"score":2.3,"label":"Low","version":"4.0","vector":"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","source":"f5"},"assigner":"f5","products":["F5 BIG-IP"],"affected":[{"vendor":"F5","product":"BIG-IP","defaultStatus":"unknown","versions":[{"version":"21.0.0","status":"unaffected","lessThan":"*","versionType":"custom"},{"version":"17.5.0","status":"affected","lessThan":"17.5.1.4","versionType":"custom"},{"version":"17.1.0","status":"affected","lessThan":"17.1.3.1","versionType":"custom"},{"version":"16.1.0","status":"affected","lessThan":"*","versionType":"custom"}],"modules":["All Modules"]}],"references":["https://my.f5.com/manage/s/article/K000156644"],"weaknesses":["CWE-451"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/20xxx/CVE-2026-20732.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20732","state":"PUBLISHED","datePublished":"2026-02-04T15:02:05.281Z","dateUpdated":"2026-02-04T16:08:05.470Z","assignerShortName":"f5","assignerOrgId":"9dacffd4-cb11-413f-8451-fbbfd4ddc0ab","dateReserved":"2026-01-21T21:33:16.381Z"},"containers":{"cna":{"title":"BIG-IP Configuration utility vulnerability","descriptions":[{"lang":"en","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."}],"affected":[{"vendor":"F5","product":"BIG-IP","defaultStatus":"unknown","versions":[{"version":"21.0.0","status":"unaffected","lessThan":"*","versionType":"custom"},{"version":"17.5.0","status":"affected","lessThan":"17.5.1.4","versionType":"custom"},{"version":"17.1.0","status":"affected","lessThan":"17.1.3.1","versionType":"custom"},{"version":"16.1.0","status":"affected","lessThan":"*","versionType":"custom"}],"modules":["All Modules"]}],"references":[{"url":"https://my.f5.com/manage/s/article/K000156644","tags":["vendor-advisory"]}],"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":{"shortName":"f5","orgId":"9dacffd4-cb11-413f-8451-fbbfd4ddc0ab","dateUpdated":"2026-02-04T15:02:05.281Z"},"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","source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"F5 SIRTBot v1.0"}},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-04T16:08:05.470Z"}}]}}}