CVE-2026-100208
published 2026-09-25CVE-2026-100208: Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
PriorityP352high8.1CVSS 3.1
AVNACHPRNUINSUCHIHAH
EPSS
0.34%
26.3th percentile
Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
Affected
3 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_ltsc_2021 | >= 16.0.1 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_ltsc_2024 | >= 16.0.0 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
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VulDB
Microsoft Outlook integer overflow
vuldb·2026-09-25·CVSS 7.5
CVE-2026-100208 [HIGH] Microsoft Outlook integer overflow
A vulnerability categorized as critical has been discovered in Microsoft Outlook. This vulnerability affects unknown code. Executing a manipulation can lead to integer overflow.
This vulnerability is handled as CVE-2026-100208. The attack can be executed remotely. There is not any exploit available.
It is best practice to apply a patch to resolve this issue.
GHSA
Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
ghsa_unreviewed·2026-09-25
CVE-2026-100208 [HIGH] CWE-190 Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-09-25
Published