Is CVE-2023-49552 actively exploited?

CVE-2023-49552 has no public evidence of in-the-wild exploitation as of 2025-04-17.

What is the CVSS score for CVE-2023-49552?

CVE-2023-49552 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2023-49552?

Patch guidance is available from cesanta security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2023-49552.

Fix CVE-2023-49552 - HIGH cesanta mjs

Description

An Out of Bounds Write in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_stringify function in the msj.c file.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-125 · Out-of-bounds Read CWE-787 · Out-of-bounds Write

Metadata

Primary Vendor: CESANTA
Published: 1/2/2024
Last Modified: 4/17/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

cesanta : mjs

Remediation Guidance

Executive Summary

Cite this page

CVE-2023-49552. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2023-49552

View on NIST NVD

CVE-2023-49552 vulnerability