CVE-2026-100796High· 8.8▾ TwilightUse-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 30.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
— → 8.8
none → high
Last analysed / modified upstream
0.3%
0.3% → 0.3%
Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-100803High· 8.1Same-origin policy bypass in the WebExtensions component
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