Is CVE-2025-64096 actively exploited?

No active exploitation of CVE-2025-64096 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-64096 be exploited remotely?

Yes. CVE-2025-64096 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-64096?

CVE-2025-64096 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2025-64096

CWE-121Published: October 30, 2025· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2025-64096 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.