High severity · published Oct 14, 2025
CVE-2025-55697
Azure Local Elevation of Privilege Vulnerability
7.8
CVSS
0.4%
EPSS
No
On KEV
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:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WS
Windows Server 2022, 23H2 Edition (Server Core installation) · Microsoft
10.0.25398.0 before 10.0.25398.1913 · source: vendor
WS
Windows Server 2025 · Microsoft
10.0.26100.0 before 10.0.26100.6899 · source: vendor, NVD
WS
Windows Server 2025 (Server Core installation) · Microsoft
10.0.26100.0 before 10.0.26100.6899 · source: vendor
WS
Windows Server 2022 23h2 · Microsoft
before 10.0.25398.1913 · source: NVD
Affected product
WS
Windows Server 2022, 23H2 Edition (Server Core installation)
Microsoft
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-55697
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-55697
Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55697
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