HIGH🇵🇱 Wersja polska

CVE-2021-23995

CVSS 8.8v3.1pub. 2021-06-24upd. 2024-11-21

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • Mozilla Firefox

    APP
    Mozilla
    < 88.0
  • Mozilla Firefox Esr

    APP
    Mozilla
    < 78.10
  • Mozilla Thunderbird

    APP
    Mozilla
    < 78.10
🔵
CHECK WITH VENDOR
No clear patch data available. Check vendor references.
CWE
References

Related vulnerabilities

CVE-2024-9680CRITICAL9.8⚠ KEVPL ✓same product

Use-after-free w Animation timelines Firefox/Thunderbird — RCE

CVE-2022-26486CRITICAL9.6⚠ KEVPL ✓same product

Use-after-free w WebGPU IPC framework Mozilla — sandbox escape

CVE-2019-11708CRITICAL10.0⚠ KEVPL ✓same product

Mozilla Firefox/Thunderbird: przełamanie sandbox przez IPC Prompt:Open

CVE-2010-3765CRITICAL9.8⚠ KEVPL ✓same product

RCE w Mozilla Firefox przez błąd nsCSSFrameConstructor::ContentAppended

CVE-2026-84119CRITICAL9.6same product

Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox...