CVE-2023-31247

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-11-14 · updated 2026-06-17
Weakness: CWE-119

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.

Affected products

silabs.com Gecko Platform: 4.3.1
Weston Embedded Cesium NET: 3.07.01
Weston Embedded uC-HTTP: 3.01.01

References

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

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