Heap Use-After-Free Vulnerability in Cesanta MJS Product
CVE-2021-46525

7.8HIGH

Key Information:

Vendor: Cesanta
Status: Mjs
Vendor: CVE Published:; 27 January 2022

What is CVE-2021-46525?

The Cesanta MJS product, specifically version 2.20.0, is impacted by a heap-use-after-free vulnerability found in the mjs_apply function located in src/mjs_exec.c. This flaw can potentially allow attackers to exploit memory corruption, leading to unexpected behavior or application crashes.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

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References

https://github.com/cesanta/mjs/issues/199

x_refsource_MISC

CVSS V3.1

Score:

7.8

Severity:

HIGH

Confidentiality:

High

Integrity:

High

Availability:

High

Attack Vector:

Local

Attack Complexity:

Low

Privileges Required:

None

User Interaction:

Required

Scope:

Unchanged

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Jan 27, 2022
Vulnerability Reserved
Jan 24, 2022

JSON

Cesanta

What is CVE-2021-46525?

Human OS v1.0: Ageing Is an Unpatched Zero-Day Vulnerability.

References

CVSS V3.1

Timeline

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.