RCE in Nasa Cryptolib
CVE-2025-59534
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Nasa Cryptolib — versions < 1.4.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/nasa/CryptoLib/security/advisories/GHSA-jw5c-58hr-m3v3 (Exploit, Vendor Advisory)
- github.com/nasa/CryptoLib/commit/3ccb1b306026bb20a028fbfdcf18935f7345ed2f (Patch)
Frequently asked questions
- What is CVE-2025-59534?
- CVE-2025-59534 is a high-severity vulnerability in Nasa Cryptolib, classified under OS Command Injection. CVSS score: 7.3/10. Published 2025-09-23.
- How severe is CVE-2025-59534?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2025-59534 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.