VDB

CVE-2026-12303

CVE-2026-12303 PUBLISHED CVSS 9.300000190734863 CRITICAL

Firefox ist ein Open Source Web Browser. Firefox ist ein Open Source Web Browser. ESR ist die Variante mit verlängertem Support. Thunderbird ist ein Open Source E-Mail Client.

EPSS 0.22% · 12.7th percentile

Risk Scores

CVSS 4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS Score
0.22%
12.7th percentile

Affected Products

VendorProductVersions
SUSESUSE Linux
AmazonAmazon Linux 2
Red HatRed Hat Enterprise Linux 8
UbuntuUbuntu Linux
MozillaMozilla Firefox <152
MozillaMozilla Firefox ESR <115.37
MozillaMozilla Firefox ESR <140.12
MozillaMozilla Thunderbird <152
DebianDebian Linux
MozillaMozilla Thunderbird <140.12
OracleOracle Linux
RESFRESF Rocky Linux
IGELIGEL OS
SUSESUSE openSUSE
Red HatRed Hat Enterprise Linux

Timeline

  • Jun 16, 2026 CVE Published
  • Jun 17, 2026 EPSS Score
  • Jun 17, 2026 Coalition ESS Score
  • Jun 17, 2026 CVE Updated
  • Jun 18, 2026 Security Advisory
  • Aug 7, 2026 EPSS Score
  • Aug 11, 2026 Distribution Patch
  • Aug 11, 2026 Distribution Patch
  • Aug 11, 2026 Distribution Patch
  • Aug 11, 2026 Distribution Patch
  • Aug 11, 2026 Distribution Patch
  • Aug 11, 2026 Distribution Patch

References

…and 34 more

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