CVE-2025-30216

CRITICAL

CryptoLib < 1.4.0 - Heap-based Buffer Overflow in Crypto_TM_ProcessSecurity

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2025-30216. PoCs published by oliviaisntcringe.

AI-analyzed exploit summary This PoC demonstrates a heap overflow vulnerability in CryptoLib's `Crypto_TM_ProcessSecurity` function by generating malicious TM packets with an inflated Secondary Header Length, leading to arbitrary code execution or DoS.

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. In versions 1.3.3 and prior, a Heap Overflow vulnerability occurs in the `Crypto_TM_ProcessSecurity` function (`crypto_tm.c:1735:8`). When processing the Secondary Header Length of a TM protocol packet, if the Secondary Header Length exceeds the packet's total length, a heap overflow is triggered during the memcpy operation that copies packet data into the dynamically allocated buffer `p_new_dec_frame`. This allows an attacker to overwrite adjacent heap memory, potentially leading to arbitrary code execution or system instability. A patch is available at commit 810fd66d592c883125272fef123c3240db2f170f.

Exploits (1)

nomisec WORKING POC
by oliviaisntcringe · poc
https://github.com/oliviaisntcringe/CVE-2025-30216-PoC

This PoC demonstrates a heap overflow vulnerability in CryptoLib's `Crypto_TM_ProcessSecurity` function by generating malicious TM packets with an inflated Secondary Header Length, leading to arbitrary code execution or DoS.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: CryptoLib versions 1.3.3 and prior
No auth needed
Prerequisites: Network access to target system processing TM packets
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Scores

CVSS v3 9.4
EPSS 0.0218
EPSS Percentile 80.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-122 CWE-787
Status published
Products (1)
nasa/cryptolib < 1.4.0
Published Mar 25, 2025
Tracked Since Feb 18, 2026