What’s Vulnerable › Vulnerabilities

CVE-2022-38475

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-12-22 · updated 2026-06-17
• Weakness: CWE-863

Description

An attacker could have written a value to the first element in a zero-length JavaScript array. Although the array was zero-length, the value was not written to an invalid memory address. This vulnerability affects Firefox < 104.

Affected products

• Mozilla Firefox: before 104.0 — fixed in 104.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 104.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1773266
• https://www.mozilla.org/security/advisories/mfsa2022-33/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1773266
• https://www.mozilla.org/security/advisories/mfsa2022-33/

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