7.5 High
CVE-2026-6758
Mozilla Firefox vulnerability
MozillaFirefox
Status
- Not in CISA KEV
Exploit probabilityEPSSchecked 23 Oct
0.5%probability of exploitation in the next 30 days
Higher than 42% of scored CVEs
SeverityCVSS
7.5High
Description NVD
Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
Coverage 1 article · 1 outlet
- Claude Mythos Finds 271 Firefox VulnerabilitiesSecurityWeek · first in our coverage · mentions it in passing