Is CVE-2023-28391 actively exploited?

No active exploitation of CVE-2023-28391 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-28391 be exploited remotely?

Yes. CVE-2023-28391 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-28391?

CVE-2023-28391 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-28391

CWE-119Published: November 14, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A memory corruption vulnerability exists in the HTTP Server header parsing functionality of Weston Embedded uC-HTTP v3.01.01. Specially crafted network packets can lead to code execution. An attacker can send a malicious packet to trigger this vulnerability.

NVD Source

Risk Analysis

A memory corruption vulnerability exists in the HTTP header parsing functionality of Weston Embedded uC-HTTP, allowing for remote code execution via crafted network packets. The critical 9.8 CVSS score reflects the ease of remote exploitation.

There is no known public exploit, and it is not listed in the KEV catalog.

Recommended Action

Apply the latest patches or firmware updates provided for the affected SDK and HTTP server components.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-28391 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-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.