CVE-2025-9182 – “Firefox WebRender Denial-of-Service Vulnerability”

The following table lists the changes that have been made to the
CVE-2025-9182 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Aug. 19, 2025

    Action Type Old Value New Value
    Added Description ‘Denial-of-service due to out-of-memory in the Graphics: WebRender component.’ This vulnerability affects Firefox < 142, Firefox ESR < 140.2, Thunderbird < 142, and Thunderbird < 140.2.
    Added Reference https://bugzilla.mozilla.org/show_bug.cgi?id=1975837
    Added Reference https://www.mozilla.org/security/advisories/mfsa2025-64/
    Added Reference https://www.mozilla.org/security/advisories/mfsa2025-67/
    Added Reference https://www.mozilla.org/security/advisories/mfsa2025-70/
    Added Reference https://www.mozilla.org/security/advisories/mfsa2025-72/
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