CVE-2026-124000 (GCVE-0-2026-124000)

Vulnerability from cvelistv5 – Published: 2026-11-09 18:42 – Updated: 2026-11-09 22:58 X_Open Source
VLAI
Title
ION-DTN 2.1.0-4.2.0 Heap Buffer Under-allocation DoS in amsd
Summary
NASA JPL ION-DTN 2.1.0 through 4.2.0 contains a heap buffer under-allocation vulnerability in the Asynchronous Message Service daemon (amsd) that allows a rogue or misconfigured peer to trigger an out-of-bounds write by sending crafted Meta-AMS (MAMS) configuration management messages that are processed without cryptographic authentication. Attackers can exploit the insufficient buffer size calculation for the internal state-event object to crash the active Configuration Server thread, causing a denial of service and potentially destabilizing subsequent shared-memory allocations in amsd.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 22:58 UTC
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
nasa-jpl ION-DTN Affected: 2.1.0 , ≤ 4.2.0 (semver)
Unaffected: 4.2.1-a.2 (custom)
Create a notification for this product.
Date Public
2026-11-06 00:00
Credits
SecMate (secmate.dev)
Show details on NVD website
To clipboard 

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