CVE-2025-55697
published 2025-10-14CVE-2025-55697: Heap-based buffer overflow in Azure Local allows an authorized attacker to elevate privileges locally.
PriorityP348high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.33%
25.0th percentile
Heap-based buffer overflow in Azure Local allows an authorized attacker to elevate privileges locally.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_server_2022_23h2 | < 10.0.25398.1913 | 10.0.25398.1913 |
| microsoft | windows_server_2025 | < 10.0.26100.6899 | 10.0.26100.6899 |
| microsoft | windows_server_2025 | >= 10.0.26100.0 < 10.0.26100.6899 | 10.0.26100.6899 |
| msrc | windows_server_2022_23h2_edition | — | — |
| msrc | windows_server_2025 | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vendor_msrc7.8HIGH
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Microsoft
Azure Local Elevation of Privilege Vulnerability
vendor_msrc·2025-10-14·CVSS 7.8
CVE-2025-55697 [HIGH] CWE-122 Azure Local Elevation of Privilege Vulnerability
Azure Local Elevation of Privilege Vulnerability
Description: Heap-based buffer overflow in Azure Local allows an authorized attacker to elevate privileges locally.
FAQ: What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
Azure Local: Azure Local
Microsoft: Microsoft
Customer Action Required: Yes
Impact: Elevation of Privilege
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Unlikely
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5066835
Reference: https://support.microsoft.com/help/5066835
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5066780
Reference: https://
GHSA
GHSA-hmjr-9h8v-hm78: Heap-based buffer overflow in Azure Local allows an authorized attacker to elevate privileges locally
ghsa_unreviewed·2025-10-14
CVE-2025-55697 [HIGH] CWE-122 GHSA-hmjr-9h8v-hm78: Heap-based buffer overflow in Azure Local allows an authorized attacker to elevate privileges locally
Heap-based buffer overflow in Azure Local allows an authorized attacker to elevate privileges locally.
No detection rules found.
No public exploits indexed.
2025-10-14
Published