Buffer overflow in Starnight Micro HTTP Server
CVE-2023-51771
In MicroHttpServer (aka Micro HTTP Server) through a8ab029, _ParseHeader in lib/server.c allows a one-byte recv buffer overflow via a long URI.
Vulnerability class: Buffer Overflow
EPSS: 0.007 (49.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Starnight Micro_http_server
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Issue Tracking)
- cve@mitre.org (Product)
Frequently asked questions
- What is CVE-2023-51771?
- CVE-2023-51771 is a critical-severity vulnerability in Starnight Micro HTTP Server, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2023-12-25.
- How severe is CVE-2023-51771?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-51771 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.