CVE-2026-84484CWE-125

CVE-2026-84484

High · published September 2, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
58.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
8.7 · 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
EPSS
0.00867 · 58.3th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-09-02T06:17Z
References (8)
https://github.com/nasa-jpl/ION-DTN · [email protected]https://github.com/nasa-jpl/ION-DTN/blob/ion-open-source-4.1.4/ici/library/ion.c#L1693 · [email protected]https://github.com/nasa-jpl/ION-DTN/blob/ion-open-source-4.1.4/ici/library/platform.c#L1982 · [email protected]https://github.com/nasa-jpl/ION-DTN/commit/d52d22bdd383798712357f86a2778757f740e812 · [email protected]https://github.com/nasa-jpl/ION-DTN/releases/tag/ion-open-source-4.2.0 · [email protected]https://github.com/nasa-jpl/ION-DTN/security/advisories/GHSA-85pw-28vw-2jf7 · [email protected]https://www.vulncheck.com/advisories/ion-dtn-before-4.2.0-out-of-bounds-read-via-decodesdnv · [email protected]https://github.com/nasa-jpl/ION-DTN/security/advisories/GHSA-85pw-28vw-2jf7 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 03 SEP 03:32Z
    EPSS moved — → 0%
    epss
  • 02 SEP 01:18Z
    ION-DTN before 4.2.0 Out-of-Bounds Read via decodeSdnv
    cvelistv5