Description
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, in base64urlDecode, padding-stripping dereferences input[inputLen - 1] before checking that inputLen > 0 or that input != NULL. For inputLen == 0, this becomes an OOB read at input[-1], potentially crashing the process. If input == NULL and inputLen == 0, it dereferences NULL - 1. This issue has been patched in version 1.4.3.
INFO
Published Date :
2026-01-10T00:11:18.877Z
Last Modified :
2026-01-12T20:23:08.304Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-21899 vulnerability.
| Vendors | Products |
|---|---|
| Nasa |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-21899.
