---
id: CVE-2025-59534
title: >-
  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
summary: >-
  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 …
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
vendor: nasa
product: cryptolib
affected:
  - cryptolib < 1.4.2
patched:
  - cryptolib 1.4.2
published: '2025-09-23'
updated: '2026-10-11'
sourceUpdated: '2026-10-11T20:10:00.200'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-59534'
references:
  - url: >-
      https://github.com/nasa/CryptoLib/commit/3ccb1b306026bb20a028fbfdcf18935f7345ed2f
    label: security-advisories@github.com
  - url: 'https://github.com/nasa/CryptoLib/security/advisories/GHSA-jw5c-58hr-m3v3'
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00906
epssPercentile: 0.58727
ingestedAt: '2026-10-12T14:50:33.984Z'
---

## Overview

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 1.4.2, there is a command Injection vulnerability in initialize_kerberos_keytab_file_login(). The vulnerability exists because the code directly interpolates user-controlled input into a shell command and executes it via system() without any sanitization or validation. This issue has been patched in version 1.4.2.

## Affected

- `cryptolib < 1.4.2`

## Remediation

Upgrade past the affected range:

- `cryptolib 1.4.2`