PT-2025-44438 · Cfs+1 · Cfs+1

Published 2025-10-30 · Updated 2026-01-09 · CVE-2025-64096

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions CryptoLib versions prior to 1.4.2

Description CryptoLib utilizes 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. A missing bounds check in the Crypto Key update() function (within crypto key mgmt.c) allows a remote attacker to trigger a stack-based buffer overflow. This occurs when a specially crafted TLV packet with a spoofed length field is supplied. The function calculates the number of keys based on an attacker-controlled field (pdu len), potentially exceeding the size of a static array (kblk[98]), leading to an out-of-bounds write and potential memory corruption.

Recommendations Update to version 1.4.2 or later.

Exploit

Fix

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2025-64096

GHSA-W6C3-PXVR-6M6J

Affected Products

Cryptolib

Cfs

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64096.json · Exploit
• 🔥 https://github.com/nasa/CryptoLib/security/advisories/GHSA-w6c3-pxvr-6m6j · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-64096 · Security Note
• https://osv.dev/vulnerability/CVE-2025-64096 · Vendor Advisory
• https://t.me/cveNotify/148316 · Telegram Post
• https://t.me/CVEtracker/36213 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1983981059625591050 · Twitter Post
• https://twitter.com/CVEnew/status/1983950702545080433 · Twitter Post
• https://twitter.com/SpaceCyberSec/status/1992156302785843338 · Twitter Post
• https://twitter.com/CveFindCom/status/1983952079640039752 · Twitter Post