{"id":"DEBIAN-CVE-2026-28532","details":"FRRouting before 10.5.3 contains an integer overflow vulnerability in seven OSPF Traffic Engineering and Segment Routing TLV parser functions where a uint16_t accumulator variable truncates uint32_t values returned by the TLV_SIZE() macro, causing the loop termination condition to fail while pointer advancement continues unchecked. Attackers with an established OSPF adjacency can send a crafted LS Update packet with a malicious Type 10 or Type 11 Opaque LSA to trigger out-of-bounds memory reads and crash all affected routers in the OSPF area or autonomous system.","modified":"2026-09-14T17:03:02.897269974Z","published":"2026-04-30T21:16:31.250Z","upstream":["CVE-2026-28532"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-28532"}],"affected":[{"package":{"name":"frr","ecosystem":"Debian:12","purl":"pkg:deb/debian/frr?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.4.4-1.1~deb12u2"}]}],"versions":["8.4.2-1","8.4.4-1","8.4.4-1.1~deb12u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-28532.json"}},{"package":{"name":"frr","ecosystem":"Debian:13","purl":"pkg:deb/debian/frr?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"10.3-3+deb13u1"}]}],"versions":["10.3-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-28532.json"}},{"package":{"name":"frr","ecosystem":"Debian:14","purl":"pkg:deb/debian/frr?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"10.5.3-1"}]}],"versions":["10.3-3","10.3-4","10.3-5","10.3.1-1","10.3.1-2","10.3.1-3","10.3.1-4","10.4.0-1","10.4.1-1","10.4.1-2","10.4.1-3","10.5.0-1","10.5.0-2","10.5.1-1","10.5.1-2","10.5.1-3","10.5.2-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-28532.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:A/AC:L/AT:P/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"}]}