CVE-2023-27882 - CVE House
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Status published Critical CVE-2023-27882

A heap-based buffer overflow vulnerability exists in the HTTP Server...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Discovered by Kelly Leuschner of Cisco Talos.

References

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Affected Vendor

Silicon Labs

View all reports →

Affected Software

Gecko Platform, Cesium NET, uC-HTTP
Vulnerable Versions:
4.3.1.0, 3.07.01, v3.01.01

Timeline

Official Publish: November 14th, 2023
Last Modified: November 4th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Weaknesses (CWE)

CWE-122

MITRE ATT&CK TTPs

T1203 Exploitation for Client Execution
Execution
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1055 Process Injection
Defense Evasion