CVE-2026-8947High· 7.3▾ TwilightUse-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 40.2 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Oct 14.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.4%
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
firefox < 115.36.0firefox < 151.0.0firefox >= 140.0, < 140.11.0thunderbird < 140.11Upgrade past the affected range:
firefox 140.11.0thunderbird 140.11Connected by shared product, vendor, weakness, or advisory.
CVE-2022-26486Critical· 9.6An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape
CVE-2022-26485High· 8.8Removing an XSLT parameter during processing could have lead to an exploitable use-after-free
CVE-2024-9680Critical· 9.8An attacker was able to achieve code execution in the content process by exploiting a use-after-free in Animation timelines
CVE-2025-3028Medium· 6.5JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free
CVE-2025-1931High· 7.5It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash
CVE-2025-1930High· 8.8On Windows, a compromised content process could use bad StreamData sent over AudioIPC to trigger a use-after-free in the Browser process