Is CVE-2023-4590 actively exploited?

No active exploitation of CVE-2023-4590 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-4590 be exploited remotely?

Yes. CVE-2023-4590 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-4590?

CVE-2023-4590 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-4590

CWE-120Published: November 27, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Buffer overflow vulnerability in Frhed hex editor, affecting version 1.6.0. This vulnerability could allow an attacker to execute arbitrary code via a long filename argument through the Structured Exception Handler (SEH) registers.

NVD Source

Risk Analysis

Frhed hex editor version 1.6.0 contains a buffer overflow that could allow arbitrary code execution via a long filename. This is a critical vulnerability with a CVSS score of 9.8.

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

Recommended Action

Users should update to a newer, patched version of the Frhed hex editor if available.

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-2023-4590 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.