{"id":"CVE-2026-59762","state":"PUBLISHED","title":"BIG-IP HTTP/2 vulnerability","description":"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.","publishedAt":"2026-07-15T14:33:44.468Z","updatedAt":"2026-07-15T15:35:16.895Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"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","source":"f5"},"assigner":"f5","products":["F5 BIG-IP","F5 BIG-IP Next for Kubernetes","F5 BIG-IP Next SPK","F5 BIG-IP Next CNF"],"affected":[{"vendor":"F5","product":"BIG-IP","defaultStatus":"unknown","versions":[{"version":"21.1.0","status":"affected","lessThan":"21.1.0.1","versionType":"custom"},{"version":"21.0.0","status":"affected","lessThan":"21.0.0.3","versionType":"custom"},{"version":"17.5.0","status":"affected","lessThan":"17.5.1.8","versionType":"custom"},{"version":"17.1.0","status":"affected","lessThan":"17.1.3.4","versionType":"custom"}],"modules":["All Modules"]},{"vendor":"F5","product":"BIG-IP Next for Kubernetes","defaultStatus":"unknown","versions":[{"version":"2.3.0","status":"affected","lessThan":"2.3.2","versionType":"custom"},{"version":"2.0.0","status":"affected","lessThan":"2.2.3","versionType":"custom"}],"modules":["TMM"]},{"vendor":"F5","product":"BIG-IP Next SPK","defaultStatus":"unknown","versions":[{"version":"1.9.0","status":"affected","lessThan":"*","versionType":"custom"},{"version":"1.7.0","status":"affected","lessThan":"1.7.18","versionType":"custom"}],"modules":["TMM"]},{"vendor":"F5","product":"BIG-IP Next CNF","defaultStatus":"unknown","versions":[{"version":"2.3.0","status":"affected","lessThan":"2.3.2","versionType":"custom"},{"version":"2.0.0","status":"affected","lessThan":"2.2.3","versionType":"custom"},{"version":"1.1.0","status":"affected","lessThan":"1.4.3","versionType":"custom"}],"modules":["TMM"]}],"references":["https://my.f5.com/manage/s/article/K000162231"],"weaknesses":["CWE-770"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/59xxx/CVE-2026-59762.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-59762","state":"PUBLISHED","datePublished":"2026-07-15T14:33:44.468Z","dateUpdated":"2026-07-15T15:35:16.895Z","assignerShortName":"f5","assignerOrgId":"9dacffd4-cb11-413f-8451-fbbfd4ddc0ab","dateReserved":"2026-07-08T15:49:43.031Z"},"containers":{"cna":{"title":"BIG-IP HTTP/2 vulnerability","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. 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