Is CVE-2021-33797 actively exploited?

CVE-2021-33797 has no public evidence of in-the-wild exploitation as of 2025-02-06.

What is the CVSS score for CVE-2021-33797?

CVE-2021-33797 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2021-33797?

Patch guidance is available from artifex security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-33797.

Fix CVE-2021-33797 - CRITICAL artifex mujs

Description

Buffer-overflow in jsdtoa.c in Artifex MuJS in versions 1.0.1 to 1.1.1. An integer overflow happens when js_strtod() reads in floating point exponent, which leads to a buffer overflow in the pointer *d.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-119 · Memory Buffer Errors CWE-190 · Integer Overflow

Metadata

Primary Vendor: ARTIFEX
Published: 4/17/2023
Last Modified: 2/6/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

artifex : mujs

Remediation Guidance

Executive Summary

Cite this page

CVE-2021-33797. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2021-33797

View on NIST NVD

CVE-2021-33797 vulnerability