Use-after-free in Scrolling and Overflow Component of Firefox
CVE-2026-24869

8.1HIGH

Key Information:

Vendor

Mozilla
Status
Firefox
Vendor
CVE Published:
27 January 2026

What is CVE-2026-24869?

A use-after-free vulnerability in the Layout: Scrolling and Overflow component of Firefox can lead to potential exploitation. This issue allows attackers to manipulate memory after it has been freed, potentially leading to crashes or arbitrary code execution. The vulnerability impacts Firefox versions prior to 147.0.2. Users are recommended to update their Firefox installations to the latest version to mitigate this risk and ensure optimal security.

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Affected Version(s)

Firefox < 147.0.2

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2008698
https://www.mozilla.org/security/advisories/mfsa2026-06/

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Hiroyuki Ikezoe
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