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CVE-2024-8384

Mozilla Firefox Esr use-after-free

9.8 CRITICALEPSS 0.72%
  1. Published3 Sept 2024

Description

The JavaScript garbage collector could mis-color cross-compartment objects if OOM conditions were detected at the right point between two passes. This could have led to memory corruption. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, Firefox ESR < 115.15, Thunderbird < 128.2, and Thunderbird < 115.15.

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≥ 128.0 < 128.2 · < 115.15

Remediation

Fixed in
Mozilla Firefox≥ 130.0
Mozilla Firefox Esr≥ 128.2

References

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Frequently asked

Is CVE-2024-8384 being actively exploited?

CVE-2024-8384 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.72%.

How severe is CVE-2024-8384?

CVE-2024-8384 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.72% probability of exploitation.

Which products are affected by CVE-2024-8384?

Affected products include Mozilla Firefox, Mozilla Firefox Esr.

How do I fix CVE-2024-8384?

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-2024-8384 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.