CVE-2026-22027

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 convert_hexstring_to_byte_array() function in the MariaDB SA interface writes decoded bytes into a caller-provided buffer without any capacity check. When importing SA fields from the database (e.g., IV, ARSN, ABM), a malformed or oversized hex string in the database can overflow the destination buffer, corrupting adjacent heap memory. This issue has been patched in version 1.4.3.

CVSS v3 6.0 MEDIUM

6.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/nasa/CryptoLib/commit/2372efd3da1ccb226b4297222e25f41ecc84821d	Patch
https://github.com/nasa/CryptoLib/releases/tag/v1.4.3	Release Notes
https://github.com/nasa/CryptoLib/security/advisories/GHSA-3m35-m689-h29x	Exploit Vendor Advisory
https://github.com/nasa/CryptoLib/security/advisories/GHSA-3m35-m689-h29x	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nasa:cryptolib:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-01-10 01:16

Updated : 2026-01-15 21:45

NVD link : CVE-2026-22027

Mitre link : CVE-2026-22027

CVE.ORG link : CVE-2026-22027

JSON object : View

Products Affected

nasa

cryptolib

CWE

CWE-122

Heap-based Buffer Overflow

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