Dashboard / CVE-2026-108431

CVE-2026-108431

HIGH
MEDIUM Priority: 0.05 BB Relevance: 68/100
Published: 2026-10-15 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

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

Weakness Classification (1)

Affected Software (27)

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 365 Apps for Enterprise 16.0.1 < https://aka.ms/OfficeSecurityReleases
Microsoft Microsoft Office 365 for Mac 1.0.0 < 16.114.26101123
Microsoft Microsoft Office 365 for Mac 1.0.0 < 16.114.26101123
Microsoft Microsoft Office 365 for Mac 1.0.0 < 16.114.26101123
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 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 Microsoft Office LTSC 2024 16.0.0 < 16.0.17932.21056
Microsoft Microsoft Office LTSC for Mac 2021 16.0.1 < 16.114.26101123
Microsoft Microsoft Office LTSC for Mac 2021 16.0.1 < 16.114.26101123
Microsoft Microsoft Office LTSC for Mac 2021 16.0.1 < 16.114.26101123
Microsoft Microsoft Office LTSC for Mac 2024 16.0.0 < 16.114.26101123
Microsoft Microsoft Office LTSC for Mac 2024 16.0.0 < 16.114.26101123
Microsoft Microsoft Office LTSC for Mac 2024 16.0.0 < 16.114.26101123
microsoft 365_apps -
microsoft 365_apps -
microsoft microsoft_365 -
microsoft office_2021 -
microsoft office_2021 -
microsoft office_2021 -
microsoft office_2024 -
microsoft office_2024 -
microsoft office_2024 -

References & Advisories (1)

Bug Bounty Relevance

68 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

8.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.62%
Raw Score 0.006180
Percentile 49.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00618
2026-10-28
0.00618

Intelligence Sources

mitre ref →

External Links