High severity7.5NVD Advisory· Published Sep 2, 2026
CVE-2026-84484
CVE-2026-84484
Description
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.
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Affected products
1Patches
Vulnerability mechanics
References
6- github.com/nasa-jpl/ION-DTN/blob/ion-open-source-4.1.4/ici/library/ion.cnvd
- github.com/nasa-jpl/ION-DTN/blob/ion-open-source-4.1.4/ici/library/platform.cnvd
- github.com/nasa-jpl/ION-DTN/commit/d52d22bdd383798712357f86a2778757f740e812nvd
- github.com/nasa-jpl/ION-DTN/releases/tag/ion-open-source-4.2.0nvd
- github.com/nasa-jpl/ION-DTN/security/advisories/GHSA-85pw-28vw-2jf7nvd
- www.vulncheck.com/advisories/ion-dtn-before-4.2.0-out-of-bounds-read-via-decodesdnvnvd
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