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Microsoft has confirmed that hackers are exploiting an Outlook zero-day that can expose Windows authentication information when a user opens a malicious file.
Summary
Tracked as CVE-2026-124194, the spoofing vulnerability was patched on November 10, 2026. Microsoft marks it “Exploitation Detected” and says it was not publicly disclosed before the update.
This is a brief wire summary, the full story (linked below) has the complete details.
KazaSec's take
A newly disclosed vulnerability is only a real risk to your organization once it's confirmed present and exploitable in your own environment, not every CVE applies equally to every network. Knowing the difference is exactly what a proper vulnerability assessment is for.
Coverage details
We've archived 304 other articles touching the same topic (vulnerability news, cyber security, vulnerability) , see the full security news archive.
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