CVE-2025-55697 — Heap-based Buffer Overflow in Microsoft Windows Server 2025

CWE-122 — Heap-based Buffer Overflow5 documents5 sources
Severity
7.8HIGHNVD
EPSS
0.1%
top 79.86%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Microsoft Windows Server 2025Microsoft Windows Server 2022 23h2
Timeline
PublishedOct 14

Description

Heap-based buffer overflow in Azure Local allows an authorized attacker to elevate privileges locally.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages2 packages

▶NVDmicrosoft/windows< 10.0.25398.1913+1
▶CVEListV5microsoft/windows_server_202510.0.26100.0 — 10.0.26100.6899

🔴Vulnerability Details

2
GHSA
GHSA-hmjr-9h8v-hm78: Heap-based buffer overflow in Azure Local allows an authorized attacker to elevate privileges locally↗2025-10-14
▶
CVEList
Azure Local Elevation of Privilege Vulnerability↗2025-10-14
▶

📋Vendor Advisories

1
Microsoft
Azure Local Elevation of Privilege Vulnerability↗2025-10-14
▶

🕵️Threat Intelligence

1
Bleepingcomputer
Microsoft October 2025 Patch Tuesday fixes 6 zero-days, 172 flaws↗2025-10-14
▶
CVE-2025-55697 — Heap-based Buffer Overflow | cvebase