Is CVE-2023-30087 actively exploited?

CVE-2023-30087 has no public evidence of in-the-wild exploitation as of 2025-01-29.

What is the CVSS score for CVE-2023-30087?

CVE-2023-30087 has a CVSS score of 5.5 (MEDIUM severity). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2023-30087?

Patch guidance is available from cesanta security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2023-30087.

CVE-2023-30087 - remediation guidance & executive summary

Description

Buffer Overflow vulnerability found in Cesanta MJS v.1.26 allows a local attacker to cause a denial of service via the mjs_mk_string function in mjs.c.

CVSS Metrics

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

Metadata

Primary Vendor: CESANTA
Published: 5/9/2023
Last Modified: 1/29/2025
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-2023-30087. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2023-30087

View on NIST NVD

CVE-2023-30087 vulnerability