Mozilla has released security advisories to address vulnerabilities in Thunderbird, Firefox and Firefox ESR. A cyber threat actor could exploit some of these vulnerabilities to take control of an affected system.
CISA encourages users and administrators to review the following advisories and apply the necessary updates:
For updates addressing lower severity vulnerabilities, see the Mozilla Foundation Security Advisories page.
CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence…
CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-41940 WebPros…
CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on…
CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2024-1708 ConnectWise ScreenConnect Path…
CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on…
CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on…
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