CVE-2024-3855 - Vulnerability Details - OpenCVE

Description

In certain cases the JIT incorrectly optimized MSubstr operations, which led to out-of-bounds reads. This vulnerability affects Firefox < 125.

Published: 2024-04-16

Score: 6.5 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Mozilla

Firefox

affected

Version	Status	Constraints
`unspecified`	affected	< 125

Configuration 1 [-]

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
Ubuntu USN	USN-6747-1	Firefox vulnerabilities

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00165.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://bugzilla.mozilla.org/show_bug.cgi?id=1885828
https://www.mozilla.org/security/advisories/mfsa2024-18/

History

Mon, 31 Mar 2025 17:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Mozilla Mozilla firefox
CPEs		cpe:2.3:a:mozilla:firefox::::::::
Vendors & Products		Mozilla Mozilla firefox

Tue, 12 Nov 2024 19:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-125
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Mozilla Firefox

MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2024-04-16T15:14:06.282Z

Updated: 2024-11-12T18:09:10.060Z

Reserved: 2024-04-15T20:26:43.183Z

Link: CVE-2024-3855

Vulnrichment

Updated: 2024-08-01T20:26:56.942Z

NVD

Status : Analyzed

Published: 2024-04-16T16:15:08.487

Modified: 2025-03-31T17:05:19.390

Link: CVE-2024-3855

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-125

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