Buffer overflow in Nasa Cryptolib
CVE-2025-54878
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. A heap b…
Vulnerability class: Buffer Overflow
EPSS: 0.004 (28.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.
Affected products
- Nasa Cryptolib — versions < 1.4.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-54878?
- CVE-2025-54878 is a high-severity vulnerability in Nasa Cryptolib, classified under Heap-based Buffer Overflow. CVSS score: 8.6/10. Published 2025-08-11.
- How severe is CVE-2025-54878?
- High severity. CVSS v3 base score is 8.6 out of 10.
- Is CVE-2025-54878 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.