{"id":"CVE-2026-65819","title":"gopacket provides packet processing capabilities for Go","summary":"gopacket provides packet processing capabilities for Go. Through version 1.7.0, multiple layer decoders use attacker-controlled lengths, counts, or offsets before validating them against packet buffers, allowing a crafted packet decoded …","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-125","CWE-400","CWE-805"],"published":"2026-08-07","updated":"2026-09-09","sourceUpdated":"2026-09-09T21:02:22.660","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-65819","references":[{"url":"https://github.com/gopacket/gopacket/commit/210f25fb9b3ca1af2eb649936f78ad6991b6c9c5","label":"security-advisories@github.com"},{"url":"https://github.com/gopacket/gopacket/releases/tag/v1.7.0","label":"security-advisories@github.com"},{"url":"https://github.com/gopacket/gopacket/security/advisories/GHSA-8mcr-459q-5mx2","label":"security-advisories@github.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-65819.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-65819"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2512626"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-65819"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65819"},{"url":"https://access.redhat.com/errata/RHSA-2026:70593"}],"tags":["nvd","csaf","vex","red-hat"],"epss":0.00361,"epssPercentile":0.29939,"ingestedAt":"2026-09-09T21:22:45.524Z","vendor":"Red Hat","product":"Network Observability (NETOBSERV) 1.12.3","affected":["network_observability_operator","network_observability_netobserv 1.12.3"],"patched":["network_observability_netobserv 1.12.3"],"slug":"CVE-2026-65819","body":"## Overview\n\ngopacket provides packet processing capabilities for Go. Through version 1.7.0, multiple layer decoders use attacker-controlled lengths, counts, or offsets before validating them against packet buffers, allowing a crafted packet decoded through DecodingLayerParser or DecodeFromBytes to trigger an unrecovered panic and remotely deny service.  A patch commit is available at 210f25f.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **RHSA-2026:70593** · Red Hat · fixed in: Network Observability (NETOBSERV) 1.12.3 · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:70593)\n- **Red Hat VEX** · Important · affected: Network Observability Operator · no fix planned: Network Observability Operator · updated 2026-09-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-65819.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}