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HIGHCVE-2026-21898Published Modified CNA GitHub_M

CVE-2026-21898: CryptoLib Has Out-of-bounds Read in Crypto_AOS_ProcessSecurity

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.

Metrics

CVSS v3.1
8.2
Severity
HIGH
Fixed in
Affected Products
1
Affected packages
  • nasa / CryptoLib
    < 1.4.3
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H