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Vulnerable Software

Vulnerability Details CVE-2026-21898

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 15.5%
CVSS Severity
CVSS v3 Score 8.2
Products affected by CVE-2026-21898
  • Nasa » Cryptolib » Version: 1.0.0
    cpe:2.3:a:nasa:cryptolib:1.0.0
  • Nasa » Cryptolib » Version: 1.0.1
    cpe:2.3:a:nasa:cryptolib:1.0.1
  • Nasa » Cryptolib » Version: 1.0.2
    cpe:2.3:a:nasa:cryptolib:1.0.2
  • Nasa » Cryptolib » Version: 1.0.3
    cpe:2.3:a:nasa:cryptolib:1.0.3
  • Nasa » Cryptolib » Version: 1.1.0
    cpe:2.3:a:nasa:cryptolib:1.1.0
  • Nasa » Cryptolib » Version: 1.1.1
    cpe:2.3:a:nasa:cryptolib:1.1.1
  • Nasa » Cryptolib » Version: 1.2.0
    cpe:2.3:a:nasa:cryptolib:1.2.0
  • Nasa » Cryptolib » Version: 1.2.1
    cpe:2.3:a:nasa:cryptolib:1.2.1
  • Nasa » Cryptolib » Version: 1.2.2
    cpe:2.3:a:nasa:cryptolib:1.2.2
  • Nasa » Cryptolib » Version: 1.2.3
    cpe:2.3:a:nasa:cryptolib:1.2.3
  • Nasa » Cryptolib » Version: 1.3.0
    cpe:2.3:a:nasa:cryptolib:1.3.0
  • Nasa » Cryptolib » Version: 1.3.1
    cpe:2.3:a:nasa:cryptolib:1.3.1
  • Nasa » Cryptolib » Version: 1.3.2
    cpe:2.3:a:nasa:cryptolib:1.3.2
  • Nasa » Cryptolib » Version: 1.3.3
    cpe:2.3:a:nasa:cryptolib:1.3.3
  • Nasa » Cryptolib » Version: 1.4.0
    cpe:2.3:a:nasa:cryptolib:1.4.0
  • Nasa » Cryptolib » Version: 1.4.1
    cpe:2.3:a:nasa:cryptolib:1.4.1
  • Nasa » Cryptolib » Version: 1.4.2
    cpe:2.3:a:nasa:cryptolib:1.4.2


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