CVE-2024-8389

Mozilla Firefox vulnerability

9.8 CRITICALEPSS 0.49%

Published3 Sept 2024

Description

Memory safety bugs present in Firefox 129. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 130.

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 Firefox129.0

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Frequently asked

Is CVE-2024-8389 being actively exploited?

CVE-2024-8389 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.49%.

How severe is CVE-2024-8389?

CVE-2024-8389 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.49% probability of exploitation.

Which products are affected by CVE-2024-8389?

Affected products include Mozilla Firefox.

How do I fix CVE-2024-8389?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-8389 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.