CVE-2026-22025

low-risk
Published 2026-01-10

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, when the KMC server returns a non-200 HTTP status code, cryptography_encrypt() and cryptography_decrypt() return immediately without freeing previously allocated buffers. Each failed request leaks approximately 467 bytes. Repeated failures (from a malicious server or network issues) can gradually exhaust memory. This issue has been patched in version 1.4.3.

Do I need to act?

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0.02% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.7/10 Low
NETWORK / HIGH complexity

Affected Products (1)

Affected Vendors

Nasa

References (4)

Patch https://github.com/nasa/CryptoLib/commit/2372efd3da1ccb226b4297222e25f41ecc84821...
Release Notes https://github.com/nasa/CryptoLib/releases/tag/v1.4.3
Exploit https://github.com/nasa/CryptoLib/security/advisories/GHSA-h74x-vwwr-mm5g
Exploit https://github.com/nasa/CryptoLib/security/advisories/GHSA-h74x-vwwr-mm5g
18
/ 100
low-risk
Severity 13/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal