Microsoft has confirmed that a critical Outlook vulnerability has already been exploited by Russian threat actors.
Microsoft has confirmed that a critical Outlook vulnerability,, is known to have already been exploited in the wild. If you think that sounds bad, it get's worse: the exploit is triggered upon receipt of a malicious email, and so is executed before that email is read in the preview pane. That's right; this is a no-user-interaction required exploit. Here's what we know about the new Microsoft Outlook zero-day.
All currently supported versions of Outlook for Windows are impacted, but not Outlook for the web or those running on Android, iOS, or Mac.Google-owned threat intelligence company, Mandiant, says that it believes the CVE-2023-23397 Microsoft Outlook zero-day vulnerability has been exploited for nearly a year in order to target both organizations and critical infrastructure.
"This is more evidence that aggressive, disruptive, and destructive cyberattacks may not remain constrained to Ukraine and a reminder that we cannot see everything," John Hultquist, head of Mandiant Intelligence Analysis at Google Cloud, said."These are spies, and they have a long track record of successfully evading our notice. This will be a propagation event. This is an excellent tool for nation-state actors and criminals alike who will be on a bonanza in the short term.
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