CVE-2026-108443
published 2026-10-15CVE-2026-108443: Off-by-one error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
PriorityP352high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.43%
36.5th percentile
Off-by-one error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | microsoft_365_apps_for_enterprise | >= 16.0.1 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_365_for_mac | >= 1.0.0 < 16.114.26101123 | 16.114.26101123 |
| microsoft | microsoft_office_ltsc_2021 | >= 16.0.1 < 16.0.14334.20974 | 16.0.14334.20974 |
| microsoft | microsoft_office_ltsc_2024 | >= 16.0.0 < 16.0.17932.21056 | 16.0.17932.21056 |
| microsoft | microsoft_office_ltsc_for_mac_2021 | >= 16.0.1 < 16.114.26101123 | 16.114.26101123 |
| microsoft | microsoft_office_ltsc_for_mac_2024 | >= 16.0.0 < 16.114.26101123 | 16.114.26101123 |
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VulDB
Microsoft Office/Office 365 for Mac off-by-one
vuldb·2026-10-15·CVSS 8.8
CVE-2026-108443 [HIGH] Microsoft Office/Office 365 for Mac off-by-one
A vulnerability described as critical has been identified in Microsoft Office and Office 365 for Mac. The impacted element is an unknown function. Executing a manipulation can lead to off-by-one.
This vulnerability is tracked as CVE-2026-108443. The attack can be launched remotely. No exploit exists.
A patch should be applied to remediate this issue.
GHSA
Off-by-one error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
ghsa_unreviewed·2026-10-15
CVE-2026-108443 [HIGH] CWE-193 Off-by-one error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
Off-by-one error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-10-15
Published