{"id":"CVE-2026-59762","aliases":["EUVD-2026-44679","GHSA-3vvh-xmcx-wpgh"],"status":"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.","severity":{"version":"4.0","score":8.7,"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00573,"percentile":0.47849,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-770"],"published":"2026-07-15T14:33:44Z","modified":"2026-08-06T18:20:20Z","products":[{"vendor":"f5","product":"big-ip"},{"vendor":"f5","product":"big-ip next cnf"},{"vendor":"f5","product":"big-ip next for kubernetes"},{"vendor":"f5","product":"big-ip next spk"},{"vendor":"f5","product":"big-ip_next_cloud-native_network_functions"},{"vendor":"f5","product":"big-ip_next_for_kubernetes"},{"vendor":"f5","product":"big-ip_next_service_proxy_for_kubernetes"}],"references":[{"url":"https://my.f5.com/manage/s/article/K000162231","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59762"},{"url":"https://github.com/advisories/GHSA-3vvh-xmcx-wpgh"}],"sources":{"cve":[{"id":"CVE-2026-59762","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.","status":"published","published":"2026-07-15T14:33:44.468Z","modified":"2026-07-15T15:35:16.895Z","cvss":[{"version":"4.0","score":8.7,"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","level":"high","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:19:58.560602Z"}],"euvd":[{"id":"EUVD-2026-44679","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.","status":"published","published":"2026-07-15T14:33:44Z","modified":"2026-07-15T15:35:16Z","cvss":[{"version":"4.0","score":8.7,"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","level":"high"}],"updated_at":"2026-11-02T18:19:52.740004Z"}],"ghsa":[{"id":"GHSA-3vvh-xmcx-wpgh","title":"When an HTTP/2 profile is configured on a virtual server, undisclosed requests can cause an...","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.","status":"published","published":"2026-07-15T15:33:06Z","modified":"2026-07-15T15:33:13Z","cvss":[{"version":"4.0","score":8.7,"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/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","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:09:33.182129Z"}],"nvd":[{"id":"CVE-2026-59762","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.","status":"published","published":"2026-07-15T15:16:46.2Z","modified":"2026-08-06T18:20:20.02Z","cvss":[{"version":"4.0","score":8.7,"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/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","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:12:29.879716Z"}]}}