CVE-2026-84484 HIGH

CVE-2026-84484: ION-DTN before 4.2.0 Out-of-Bounds Read via decodeSdnv

Vendor Nasa-Jpl
Product ION-DTN
Weakness CWE-125
Published September 2, 2026
Last update September 2, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

September 2, 2026 CVE published