{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-59762","sourceIdentifier":"f5sirt@f5.com","published":"2026-07-15T15:16:46.200","lastModified":"2026-08-06T18:20:20.020","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"When an HTTP/2 profile is configured on a virtual server, undisclosed requests can cause an increase in memory resource utilization.  \n\n\n\n\n\n\n\n\n\nImpact:\nSystem performance can degrade until the TMM process is either forced to restart or is manually restarted. This vulnerability allows a remote, unauthenticated attacker to cause a degradation of service that can lead to a denial-of-service (DoS) on the BIG-IP system. There is no control plane exposure; this is a data plane issue only.\n\n\n\n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated."}],"affected":[{"source":"f5sirt@f5.com","affectedData":[{"vendor":"F5","product":"BIG-IP","defaultStatus":"unknown","modules":["All Modules"],"versions":[{"version":"21.1.0","lessThan":"21.1.0.1","versionType":"custom","status":"affected"},{"version":"21.0.0","lessThan":"21.0.0.3","versionType":"custom","status":"affected"},{"version":"17.5.0","lessThan":"17.5.1.8","versionType":"custom","status":"affected"},{"version":"17.1.0","lessThan":"17.1.3.4","versionType":"custom","status":"affected"}]},{"vendor":"F5","product":"BIG-IP Next for Kubernetes","defaultStatus":"unknown","modules":["TMM"],"versions":[{"version":"2.3.0","lessThan":"2.3.2","versionType":"custom","status":"affected"},{"version":"2.0.0","lessThan":"2.2.3","versionType":"custom","status":"affected"}]},{"vendor":"F5","product":"BIG-IP Next SPK","defaultStatus":"unknown","modules":["TMM"],"versions":[{"version":"1.9.0","lessThan":"*","versionType":"custom","status":"affected"},{"version":"1.7.0","lessThan":"1.7.18","versionType":"custom","status":"affected"}]},{"vendor":"F5","product":"BIG-IP Next CNF","defaultStatus":"unknown","modules":["TMM"],"versions":[{"version":"2.3.0","lessThan":"2.3.2","versionType":"custom","status":"affected"},{"version":"2.0.0","lessThan":"2.2.3","versionType":"custom","status":"affected"},{"version":"1.1.0","lessThan":"1.4.3","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:N/UI:N/VC:N/VI:N/VA:H/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":8.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","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:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-15T15:34:45.499391Z","id":"CVE-2026-59762","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA 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Advisory"]}]}}