CVE-2026-22023 PUBLISHED

CryptoLib Has Out-of-Bounds Read in KMC AEAD Encrypt Metadata Parsing via Flawed strtok Pattern

Assigner: GitHub_M
Reserved: 05.01.2026 Published: 10.01.2026 Updated: 13.01.2026

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, there is an out-of-bounds heap read vulnerability in cryptography_aead_encrypt(). This issue has been patched in version 1.4.3.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	Present	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	nasa
Product	CryptoLib
Versions	Version < 1.4.3 is affected

References

Problem Types

CWE-125: Out-of-bounds Read CWE