CVE-2021-29946
—CVSS 3.1
8.8 high
EPSS
1%p68
Published
()
Modified
Description
Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc header. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
- Vendors
- mozilla
- Products
- firefox, firefox esr, thunderbird
- Weakness
- CWE-190
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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