CVE-2023-31247

critical

Description

A memory corruption vulnerability exists in the HTTP Server Host header parsing 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.

References

https://blog.talosintelligence.com/fuzzing-uc-os-protocol-stacks-part-1/

https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1746

https://talosintelligence.com/vulnerability_reports/TALOS-2023-1746

Details

Source: Mitre, NVD

Published: 2023-11-14

Updated: 2025-11-04

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00914