Outlook
Security incidents tagged Outlook. Newest first.
0 Outlook incidents in the last 12 months
Critical 4 · High 3 · Med 2 · Low 1 · Update ½Severity-weighted: critical 4 · high 3 · medium 2 · low 1 · update ½LessMore
- Incidents
- 1
- Live
- 0
- Patched
- 1
- Days without an incident
- 1318
- Longest quiet run: 1308 days (Mar 25–Oct 22)
Show 1 older incident1 older incident
March 2023 1
CriticalOutlook zero-click NTLM hash leak used by Russian state hackers (CVE-2023-23397)Patched
Microsoft Outlook for Windows Patched
A crafted Outlook reminder with a UNC path made Outlook for Windows send the user's NTLM hash to an attacker's server without any click. Microsoft said a Russia-based actor (APT28) used it against European government, transport, energy and military targets.
Open incident →CVE-2023-23397
