CVE-2023-50965
CWE-787Published: December 17, 2023· Updated: Jun 17, 2026
Official Description
In MicroHttpServer (aka Micro HTTP Server) through 4398570, _ReadStaticFiles in lib/middleware.c allows a stack-based buffer overflow and potentially remote code execution via a long URI.
Risk Analysis
Micro HTTP Server contains a stack-based buffer overflow vulnerability in its middleware. This critical flaw allows remote code execution via a long URI, resulting in a 9.8 CVSS score.
There is no known public exploit, and the vulnerability is not in the CISA KEV catalog. It is remotely exploitable with low complexity.
Upgrade to a patched version of Micro HTTP Server or implement URI length validation at the network edge.
Technical Analysis
CVE-2023-50965 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (4)
Quick Facts
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-50965 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts