CVE-2026-84484: nasa-jpl ION-DTN

Affected products, as the CNA wrote them
Vendor	Product	Versions
nasa-jpl	ION-DTN	affected before 4.2.0 custom Other versions: unaffected

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.7	High	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
7.5	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0087, the 58th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 2 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/nasa-jpl/ION-DTN/security/advisories/GHSA-85pw-28vw-2jf7 vendor-advisory
github.com/nasa-jpl/ION-DTN/commit/d52d22bdd383798712357f86a2778757f740e812 patch
github.com/nasa-jpl/ION-DTN/releases/tag/ion-open-source-4.2.0 release-notes
github.com/nasa-jpl/ION-DTN/blob/ion-open-source-4.1.4/ici/library/platform.c#L1982 technical-description
github.com/nasa-jpl/ION-DTN/blob/ion-open-source-4.1.4/ici/library/ion.c#L1693 technical-description
github.com/nasa-jpl/ION-DTN product
www.vulncheck.com/advisories/ion-dtn-before-4.2.0-out-of-bounds-read-via-decodesdnv third-party-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.