CVE-2025-49696 — Heap-based Buffer Overflow in Microsoft 365 Apps FOR Enterprise

CWE-122 — Heap-based Buffer OverflowCWE-125 — Out-of-bounds Read4 documents4 sources
Severity
8.4HIGHNVD
EPSS
0.3%
top 43.71%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
10
Microsoft 365 Apps FOR EnterpriseMicrosoft Office 2016Microsoft Office 2019+7 more
Timeline
PublishedJul 8

Description

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 2.5 | Impact: 5.9

Affected Packages10 packages

▶CVEListV5microsoft/microsoft_office_201616.0.0 — 16.0.5508.1001
▶CVEListV5microsoft/microsoft_office_201919.0.0 — https://aka.ms/OfficeSecurityReleases
▶CVEListV5microsoft/microsoft_office_ltsc_202116.0.1 — https://aka.ms/OfficeSecurityReleases
▶CVEListV5microsoft/microsoft_office_ltsc_202416.0.0 — https://aka.ms/OfficeSecurityReleases
▶CVEListV5microsoft/microsoft_office_for_android16.0.1 — 16.0.19029.20000

🔴Vulnerability Details

2
CVEList
Microsoft Office Remote Code Execution Vulnerability↗2025-07-08
▶
GHSA
GHSA-jf3j-gf83-hhg3: Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally↗2025-07-08
▶

📋Vendor Advisories

1
Microsoft
Microsoft Office Remote Code Execution Vulnerability↗2025-07-08
▶