CVE-2023-27882
CWE-122Published: November 14, 2023· Updated: Jun 17, 2026
Official Description
A heap-based buffer overflow vulnerability exists in the HTTP Server form boundary functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted network packet can lead to code execution. An attacker can send a malicious packet to trigger this vulnerability.
Risk Analysis
A heap-based buffer overflow in the form boundary functionality of Weston Embedded uC-HTTP allows for remote code execution via malicious network packets. This critical vulnerability is remotely exploitable with low complexity.
There is no known public exploit, and it is not in the KEV catalog.
Update the affected software to the latest version provided by the vendor.
Technical Analysis
CVE-2023-27882 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.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (3)
Quick Facts
Related CVEs (CWE-122)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-27882 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts