CVE-2026-97016

CRITICAL
INFO Priority: 0.11 BB Relevance: 80/100
Published: 2026-10-13 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

Description

Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

Affected Software (12)

VendorProductVersion
Microsoft Microsoft 365 Apps for Enterprise 16.0.1 < https://aka.ms/OfficeSecurityReleases
Microsoft Microsoft 365 Apps for Enterprise 16.0.1 < https://aka.ms/OfficeSecurityReleases
Microsoft Microsoft Office LTSC 2021 16.0.1 < 16.0.14334.20974
Microsoft Microsoft Office LTSC 2021 16.0.1 < 16.0.14334.20974
Microsoft Microsoft Office LTSC 2024 16.0.0 < 16.0.17932.21056
Microsoft Microsoft Office LTSC 2024 16.0.0 < 16.0.17932.21056
microsoft 365_apps -
microsoft 365_apps -
microsoft office_2021 -
microsoft office_2021 -
microsoft office_2024 -
microsoft office_2024 -

References & Advisories (1)

Bug Bounty Relevance

80 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

EPSS — Exploitation Probability

1.17%
Raw Score 0.011720
Percentile 67.3%
Date 2026-10-28

Intelligence Sources

mitre ref →