{"id":"CVE-2026-79602","title":"A guest with a PCI device assigned that has at least a BAR on the IO port\nspace can trigger a BUG() in Xen.","summary":"A guest with a PCI device assigned that has at least a BAR on the IO port\nspace can trigger a BUG() in Xen.","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-119"],"vendor":"Xen","product":"Xen","affected":["Xen"],"published":"2026-09-08","updated":"2026-09-10","sourceUpdated":"2026-09-10T19:17:34.963","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-79602","references":[{"url":"https://xenbits.xenproject.org/xsa/advisory-510.html","label":"security@xen.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/09/08/7","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://xenbits.xen.org/xsa/advisory-510.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-79602.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-79602"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-79602"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-10T18:08:16.213605Z"},"epss":0.0013,"epssPercentile":0.03001,"scores":{"nvd":8.8,"vendor":6,"adp":8.8},"ingestedAt":"2026-09-08T15:33:26.984Z","slug":"CVE-2026-79602","body":"## Overview\n\nA guest with a PCI device assigned that has at least a BAR on the IO port\nspace can trigger a BUG() in Xen.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-09-08 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-79602.json)","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":201993,"id":"CVE-2026-79602","ts":1789399993529,"field":"cvss","old":null,"new":"8.8"},{"seq":201992,"id":"CVE-2026-79602","ts":1789399993529,"field":"severity","old":"none","new":"high"},{"seq":200720,"id":"CVE-2026-79602","ts":1789397585586,"field":"cvss","old":"8.8","new":null},{"seq":200719,"id":"CVE-2026-79602","ts":1789397585586,"field":"severity","old":"high","new":"none"},{"seq":199415,"id":"CVE-2026-79602","ts":1789395478814,"field":"cvss","old":null,"new":"8.8"},{"seq":199414,"id":"CVE-2026-79602","ts":1789395478814,"field":"severity","old":"none","new":"high"},{"seq":198660,"id":"CVE-2026-79602","ts":1789392188275,"field":"cvss","old":"8.8","new":null},{"seq":198659,"id":"CVE-2026-79602","ts":1789392188275,"field":"severity","old":"high","new":"none"},{"seq":196991,"id":"CVE-2026-79602","ts":1789384273363,"field":"cvss","old":null,"new":"8.8"},{"seq":196990,"id":"CVE-2026-79602","ts":1789384273363,"field":"severity","old":"none","new":"high"},{"seq":194122,"id":"CVE-2026-79602","ts":1789378694110,"field":"cvss","old":"8.8","new":null},{"seq":194121,"id":"CVE-2026-79602","ts":1789378694110,"field":"severity","old":"high","new":"none"},{"seq":192909,"id":"CVE-2026-79602","ts":1789376494609,"field":"cvss","old":null,"new":"8.8"},{"seq":192908,"id":"CVE-2026-79602","ts":1789376494609,"field":"severity","old":"none","new":"high"},{"seq":191696,"id":"CVE-2026-79602","ts":1789373590467,"field":"cvss","old":"8.8","new":null},{"seq":191695,"id":"CVE-2026-79602","ts":1789373590467,"field":"severity","old":"high","new":"none"},{"seq":190481,"id":"CVE-2026-79602","ts":1789369449755,"field":"cvss","old":null,"new":"8.8"},{"seq":190480,"id":"CVE-2026-79602","ts":1789369449755,"field":"severity","old":"none","new":"high"},{"seq":189268,"id":"CVE-2026-79602","ts":1789368373534,"field":"cvss","old":"8.8","new":null},{"seq":189267,"id":"CVE-2026-79602","ts":1789368373534,"field":"severity","old":"high","new":"none"},{"seq":188051,"id":"CVE-2026-79602","ts":1789365211676,"field":"cvss","old":null,"new":"8.8"},{"seq":188050,"id":"CVE-2026-79602","ts":1789365211676,"field":"severity","old":"none","new":"high"},{"seq":186838,"id":"CVE-2026-79602","ts":1789363455030,"field":"cvss","old":"8.8","new":null},{"seq":186837,"id":"CVE-2026-79602","ts":1789363455030,"field":"severity","old":"high","new":"none"},{"seq":185624,"id":"CVE-2026-79602","ts":1789361195404,"field":"cvss","old":null,"new":"8.8"},{"seq":185623,"id":"CVE-2026-79602","ts":1789361195404,"field":"severity","old":"none","new":"high"},{"seq":184411,"id":"CVE-2026-79602","ts":1789358319021,"field":"cvss","old":"8.8","new":null},{"seq":184410,"id":"CVE-2026-79602","ts":1789358319021,"field":"severity","old":"high","new":"none"},{"seq":182662,"id":"CVE-2026-79602","ts":1789354302745,"field":"cvss","old":null,"new":"8.8"},{"seq":182661,"id":"CVE-2026-79602","ts":1789354302745,"field":"severity","old":"none","new":"high"},{"seq":181455,"id":"CVE-2026-79602","ts":1789353280154,"field":"cvss","old":"8.8","new":null},{"seq":181454,"id":"CVE-2026-79602","ts":1789353280154,"field":"severity","old":"high","new":"none"},{"seq":180248,"id":"CVE-2026-79602","ts":1789350265560,"field":"cvss","old":null,"new":"8.8"},{"seq":180247,"id":"CVE-2026-79602","ts":1789350265560,"field":"severity","old":"none","new":"high"},{"seq":179041,"id":"CVE-2026-79602","ts":1789348257127,"field":"cvss","old":"8.8","new":null},{"seq":179040,"id":"CVE-2026-79602","ts":1789348257127,"field":"severity","old":"high","new":"none"},{"seq":177834,"id":"CVE-2026-79602","ts":1789346356063,"field":"cvss","old":null,"new":"8.8"},{"seq":177833,"id":"CVE-2026-79602","ts":1789346356063,"field":"severity","old":"none","new":"high"},{"seq":176627,"id":"CVE-2026-79602","ts":1789343157336,"field":"cvss","old":"8.8","new":null},{"seq":176626,"id":"CVE-2026-79602","ts":1789343157336,"field":"severity","old":"high","new":"none"},{"seq":174744,"id":"CVE-2026-79602","ts":1789334853221,"field":"cvss","old":null,"new":"8.8"},{"seq":174743,"id":"CVE-2026-79602","ts":1789334853221,"field":"severity","old":"none","new":"high"},{"seq":173539,"id":"CVE-2026-79602","ts":1789333641347,"field":"cvss","old":"8.8","new":null},{"seq":173538,"id":"CVE-2026-79602","ts":1789333641347,"field":"severity","old":"high","new":"none"},{"seq":172353,"id":"CVE-2026-79602","ts":1789331080699,"field":"cvss","old":null,"new":"8.8"},{"seq":172352,"id":"CVE-2026-79602","ts":1789331080699,"field":"severity","old":"none","new":"high"},{"seq":171167,"id":"CVE-2026-79602","ts":1789328750880,"field":"cvss","old":"8.8","new":null},{"seq":171166,"id":"CVE-2026-79602","ts":1789328750880,"field":"severity","old":"high","new":"none"},{"seq":169962,"id":"CVE-2026-79602","ts":1789327144746,"field":"cvss","old":null,"new":"8.8"},{"seq":169961,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