CVE-2026-70281 Microsoft Office Outlook - Information Disclosure

Microsoft Office Outlook contains an out-of-bounds read vulnerability that allows unauthorized attackers to disclose information over a network, exploit requires no special privileges.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
1.01% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Information Disclosure
Impact
Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
13 October 2026
Updated
15 October 2026
Weakness
CWE-125

Vendor fix

Update to the latest version of Microsoft Office Outlook.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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