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A pair of newly discovered vulnerabilities have highlighted the ongoing risks posed by Internet Explorer’s (IE) deep integration into the Windows ecosystem, despite Microsoft ending support for IE in June 2022.

Discovered by the Varonis Threat Labs team, the exploits affect an IE-specific Event Log that is present on all current Windows operating systems up to, but not including, Windows 11. The vulnerabilities, dubbed LogCrusher and OverLog by the researchers, have been reported to Microsoft, which released a partial patch on October 11, 2022. Teams are urged to patch systems and monitor suspicious activity to mitigate security risks which include event log crashing and remote denial-of-service (DoS) attacks.

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