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CVE-2024-9392

Mozilla Firefox vulnerability

9.8 CRITICALEPSS 0.53%
  1. Published1 Oct 2024

Description

A compromised content process could have allowed for the arbitrary loading of cross-origin pages. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.

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< 131.0 · < 115.6.0
Mozilla Thunderbird≥ 129.0 < 131.0 · < 128.3.0

Remediation

Fixed in
Mozilla Firefox≥ 131.0
Mozilla Thunderbird≥ 131.0

References

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Frequently asked

Is CVE-2024-9392 being actively exploited?

CVE-2024-9392 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.53%.

How severe is CVE-2024-9392?

CVE-2024-9392 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.53% probability of exploitation.

Which products are affected by CVE-2024-9392?

Affected products include Mozilla Firefox, Mozilla Thunderbird.

How do I fix CVE-2024-9392?

Upgrade affected software to a fixed version, for example Mozilla Firefox 131.0, Mozilla Thunderbird 131.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-9392 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.