CVE-2025-1942 – Firefox Uninitialized Memory Disclosure

The following table lists the changes that have been made to the
CVE-2025-1942 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]

    Mar. 04, 2025

    Action Type Old Value New Value
    Added Description When String.toUpperCase() caused a string to get longer it was possible for uninitialized memory to be incorporated into the result string This vulnerability affects Firefox < 136.
    Added Reference https://bugzilla.mozilla.org/show_bug.cgi?id=1947139
    Added Reference https://www.mozilla.org/security/advisories/mfsa2025-14/
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