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CVE-2021-29946

CVSS v3.1 8.8 (High)
88% Progress
CVSS v2.0 6.8 (Medium)
68% Progress
EPSS 0.29 % (69th)
0.29% Progress
Affected Products 3
Advisories 30
Info CVSS EPSS CAPEC Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

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.

Weaknesses
CWE-190
Integer Overflow or Wraparound
CVE Status
PUBLISHED
CNA
Mozilla Corporation
Published Date
2021-06-24 14:15:09
(3 years ago)
Updated Date
2021-06-25 20:06:18
(3 years ago)

Affected Products

Mozilla

Configuration #1

    CPE23 From Up To
  Mozilla Firefox prior 88.0 version cpe:2.3:a:mozilla:firefox < 88.0
  Mozilla Firefox Esr prior 78.10 version cpe:2.3:a:mozilla:firefox_esr < 78.10
  Mozilla Thunderbird prior 78.10 version cpe:2.3:a:mozilla:thunderbird < 78.10