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CVE-2026-56165 Details
Description
Heap-based buffer overflow in Microsoft Account allows an unauthorized attacker to execute code over a network.
A heap-based buffer overflow vulnerability has been identified in Microsoft Account. This vulnerability allows an unauthorized attacker to execute code remotely over a network. It affects several different versions and/or ranges of Microsoft Account.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 24, 2026Exploitation: NoneAutomatable: YesTechnical Impact: Total
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56165 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-122 | Heap-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| microsoft account | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 30, 2026 | Initial Analysis | [email protected] |
| Jul 25, 2026 | CVE Modified | CISA-ADP |
| Jul 24, 2026 | CVE Modified | CISA-ADP |
| Jul 24, 2026 | New CVE Received | [email protected] |