Is CVE-2023-51389 actively exploited?

No active exploitation of CVE-2023-51389 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-51389 be exploited remotely?

Yes. CVE-2023-51389 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-51389?

CVE-2023-51389 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-51389

CWE-502Published: February 22, 2024· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Hertzbeat is a real-time monitoring system. At the interface of `/define/yml`, SnakeYAML is used as a parser to parse yml content, but no security configuration is used, resulting in a YAML deserialization vulnerability. Version 1.4.1 fixes this vulnerability.

NVD Source

Risk Analysis

Hertzbeat fails to properly secure its YAML parser, leading to a deserialization vulnerability. This allows remote attackers to execute arbitrary code by supplying malicious YAML content.

This is a remotely exploitable vulnerability with low attack complexity; no public exploit is currently known.

Recommended Action

Upgrade to Hertzbeat version 1.4.1 or later to apply the necessary security configurations for the YAML parser.

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-2023-51389 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-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote code execution.