Description
CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between a spacecraft running the core Flight System (cFS) and a ground station. Prior to version 1.4.3, the Crypto_AOS_ProcessSecurity function reads memory without valid bounds checking when parsing AOS frame hashes. This issue has been patched in version 1.4.3.
References (2)
Core 2
Core References
Exploit, Vendor Advisory x_refsource_confirm
https://github.com/nasa/CryptoLib/security/advisories/GHSA-7ch6-2pmg-m853
Release Notes x_refsource_misc
https://github.com/nasa/CryptoLib/releases/tag/v1.4.3
Scores
CVSS v3
8.2
EPSS
0.0003
EPSS Percentile
9.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-125
Status
published
Products (1)
nasa/cryptolib
< 1.4.3
Published
Jan 10, 2026
Tracked Since
Feb 18, 2026