CVE-2024-29943

Mozilla Firefox vulnerability

9.8 CRITICALEPSS 22.9%

Published22 Mar 2024

Description

An attacker was able to perform an out-of-bounds read or write on a JavaScript object by fooling range-based bounds check elimination. This vulnerability affects Firefox < 124.0.1.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Mozilla Firefox< 124.0.1

Remediation

Fixed in

Mozilla Firefox≥ 124.0.1

Frequently asked

Is CVE-2024-29943 being actively exploited?

CVE-2024-29943 is not in the CISA KEV catalog. Its EPSS exploit probability is 22.9%.

How severe is CVE-2024-29943?

CVE-2024-29943 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 22.9% probability of exploitation.

Which products are affected by CVE-2024-29943?

Affected products include Mozilla Firefox.

How do I fix CVE-2024-29943?

Upgrade affected software to a fixed version, for example Mozilla Firefox 124.0.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-29943 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.