CVE-2024-8385

Mozilla Firefox vulnerability

9.8 CRITICALEPSS 0.57%

Published3 Sept 2024

Description

A difference in the handling of StructFields and ArrayTypes in WASM could be used to trigger an exploitable type confusion vulnerability. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Thunderbird < 128.2.

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< 130.0

Mozilla Firefox Esr< 128.2

Remediation

Fixed in

Mozilla Firefox≥ 130.0

Mozilla Firefox Esr≥ 128.2

Frequently asked

Is CVE-2024-8385 being actively exploited?

CVE-2024-8385 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.57%.

How severe is CVE-2024-8385?

CVE-2024-8385 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.57% probability of exploitation.

Which products are affected by CVE-2024-8385?

Affected products include Mozilla Firefox, Mozilla Firefox Esr.

How do I fix CVE-2024-8385?

Upgrade affected software to a fixed version, for example Mozilla Firefox 130.0, Mozilla Firefox Esr 128.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-8385 against the real software inventory on every managed device, as each hourly inventory arrives. 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.