VDB

CVE-2026-12300

CVE-2026-12300 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 0.25% · 16.5th 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
0.25%
16.5th percentile

Affected Products

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

Timeline

  • Jun 16, 2026 CVE Published
  • Jun 17, 2026 EPSS Score
  • Jun 17, 2026 Coalition ESS Score
  • Jun 18, 2026 CVE Updated
  • Jun 19, 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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