Denial of Service Vulnerability in mquickjs by Bellard
CVE-2025-70347

5.5MEDIUM

Key Information:

Vendor

Bellard

Status
mquickjs
Vendor
CVE Published:
10 February 2026

What is CVE-2025-70347?

A vulnerability in mquickjs allows a local attacker to exploit the get_mblock_size function by crafting a specific file. This can lead to a denial of service, impacting the ability of the application to function properly. The issue exists in versions of mquickjs prior to commit 74b7e, making it crucial for users to update their installations to mitigate potential risks.

References

https://github.com/bellard/mquickjs/issues/56

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.