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CVE-2025-1020

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CVSS 3.1
9.8 critical
EPSS
<1%p44
Published
()
Modified
Description

Memory safety bugs present in Firefox 134 and Thunderbird 134. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 135 and Thunderbird 135.

Vendors
mozilla
Products
firefox, thunderbird
Weakness
CWE-787
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD CVE.org GitHub PoCs EPSS (0.5%)

In the news

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