{"id":"CVE-2026-84484","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-84484","summary":"ION-DTN versions before 4.2.0 contain an out-of-bounds read vulnerability in the decodeSdnv function that allows unauthenticated remote attackers to read memory by sending truncated…","details":"ION-DTN versions before 4.2.0 contain an out-of-bounds read vulnerability in the decodeSdnv function that allows unauthenticated remote attackers to read memory by sending truncated SDNV values. Attackers can send a UDP datagram to the LTP link service input port with a truncated SDNV to trigger reads up to nine bytes past buffer boundaries and underflow byte counters.","published":"2026-09-02T02:17:20.450","modified":"2026-09-02T02:17:20.450","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/nasa-jpl/ION-DTN/commit/d52d22bdd383798712357f86a2778757f740e812","label":"nasa-jpl/ION-DTN@d52d22b"},"references":[{"type":"WEB","url":"https://github.com/nasa-jpl/ION-DTN"},{"type":"WEB","url":"https://github.com/nasa-jpl/ION-DTN/blob/ion-open-source-4.1.4/ici/library/ion.c#L1693"},{"type":"WEB","url":"https://github.com/nasa-jpl/ION-DTN/blob/ion-open-source-4.1.4/ici/library/platform.c#L1982"},{"type":"WEB","url":"https://github.com/nasa-jpl/ION-DTN/commit/d52d22bdd383798712357f86a2778757f740e812"},{"type":"WEB","url":"https://github.com/nasa-jpl/ION-DTN/releases/tag/ion-open-source-4.2.0"},{"type":"WEB","url":"https://github.com/nasa-jpl/ION-DTN/security/advisories/GHSA-85pw-28vw-2jf7"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/ion-dtn-before-4.2.0-out-of-bounds-read-via-decodesdnv"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-02T02:17:20.450"}}