CVE-2026-84484ION-DTN before 4.2.0 Out-of-Bounds Read via decodeSdnv
Updated under an hour ago ()
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It affects nasa-jpl ION-DTN. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-125
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
nasa-jpl ION-DTN nasa_jpl:ion_dtn (from the name) | before 4.2.0 | CNA record |
References
- https://github.com/nasa-jpl/ION-DTN/security/advisories/GHSA-85pw-28vw-2jf7vendor-advisory
- https://github.com/nasa-jpl/ION-DTN/commit/d52d22bdd383798712357f86a2778757f740e812patch
- https://github.com/nasa-jpl/ION-DTN/releases/tag/ion-open-source-4.2.0release-notes
- https://github.com/nasa-jpl/ION-DTN/blob/ion-open-source-4.1.4/ici/library/platform.c#L1982technical-description
- https://github.com/nasa-jpl/ION-DTN/blob/ion-open-source-4.1.4/ici/library/ion.c#L1693technical-description
- https://github.com/nasa-jpl/ION-DTNproduct
- https://www.vulncheck.com/advisories/ion-dtn-before-4.2.0-out-of-bounds-read-via-decodesdnvthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.