{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42408","assignerOrgId":"9dacffd4-cb11-413f-8451-fbbfd4ddc0ab","state":"PUBLISHED","assignerShortName":"f5","dateReserved":"2026-04-30T23:02:47.652Z","datePublished":"2026-05-13T14:12:30.623Z","dateUpdated":"2026-05-13T16:15:52.300Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unknown","modules":["DNS"],"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"}],"datePublic":"2026-05-13T14:00:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<span style=\"background-color: rgb(255, 255, 255);\">When BIG-IP DNS is provisioned, a vulnerability exists in an undisclosed TMOS Shell (</span><strong>tmsh</strong><span style=\"background-color: rgb(255, 255, 255);\">) command that may allow a highly privileged authenticated attacker to view sensitive information.</span>&nbsp;&nbsp;<span style=\"background-color: rgb(255, 255, 255);\"><span style=\"background-color: rgb(255, 255, 255);\">Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.</span>\n\n</span>\n\n<br>"}],"value":"When BIG-IP DNS is provisioned, a vulnerability exists in an undisclosed TMOS Shell (tmsh) command that may allow a highly privileged authenticated attacker to view sensitive information.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":4.4,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]},{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":6.7,"baseSeverity":"MEDIUM","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-312","description":"CWE-312 Cleartext Storage of Sensitive Information","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"9dacffd4-cb11-413f-8451-fbbfd4ddc0ab","shortName":"f5","dateUpdated":"2026-05-13T14:12:30.623Z"},"references":[{"tags":["vendor-advisory","patch"],"url":"https://my.f5.com/manage/s/article/K000157981"}],"source":{"discovery":"INTERNAL"},"title":"BIG-IP DNS tmsh vulnerability","x_generator":{"engine":"F5 SIRTBot v1.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-13T15:59:47.252323Z","id":"CVE-2026-42408","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":"2026-05-13T16:15:52.300Z"}}]}}