CVE-2026-108448
published 2026-10-15CVE-2026-108448: Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
PriorityP349high7.5CVSS 3.1
AVNACHPRNUIRSUCHIHAH
EPSS
0.34%
26.3th percentile
Heap-based buffer overflow in Microsoft Office Outlook 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 Outlook heap-based overflow
vuldb·2026-10-15·CVSS 7.5
CVE-2026-108448 [HIGH] Microsoft Office Outlook heap-based overflow
A vulnerability was found in Microsoft Office. It has been rated as critical. Impacted is an unknown function of the component Outlook. This manipulation causes heap-based buffer overflow.
This vulnerability is handled as CVE-2026-108448. The attack can be initiated remotely. There is not any exploit available.
To fix this issue, it is recommended to deploy a patch.
GHSA
Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
ghsa_unreviewed·2026-10-15
CVE-2026-108448 [HIGH] CWE-122 Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow 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.
2026-10-15
Published