🛡️ CVE-2025-64096
🟠 CVSS 8.8 — High ⚠️ Exploit Public CWE-121 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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 1.4.2, there is a missing bounds check in Crypto_Key_update() (crypto_key_mgmt.c) which allows a remote attacker to trigger a stack-based buffer overflow by supplying a TLV packet with a spoofed length field. The function calculates the number of keys from an attacker-controlled field (pdu_len), which may exceed the static array size (kblk[98]), leading to an out-of-bounds write and potential memory corruption. This vulnerability is fixed in 1.4.2.

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-121
Public Exploit ⚠️ Yes
Source NVD
Published 2025-10-30
Updated 2026-06-02
Modified 2026-01-09
Fix URL N/A

Affected Packages

Software From version Fixed in
cryptolib — 1.4.2

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