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MSRC compact vulnerability detail

CVE-2026-20832 · Windows Remote Procedure Call Interface Definition Language (IDL) Elevation of Privilege Vulnerability

No description was published by MSRC.

Severity
Important
Impact
Elevation of Privilege
CVSS
7.8 base · 6.8 temporal
Release
2026-01-13
Signals
Windows Remote Procedure Call Interface Definition Language (IDL) Elevation of Privilege Exploited: No Publicly disclosed: No Exploitability: Exploitation Less Likely
CWE
CWE-415: Double Free
Patch Diff
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Resolved binary override
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Description
No description was published by MSRC.
FAQ / Articles
Windows Remote Procedure Call Interface Definition Language (IDL) Elevation of Privilege Vulnerability
Double free in Windows Remote Procedure Call Interface Definition Language (IDL) allows an authorized attacker to elevate privileges locally.
FAQ
What privileges could be gained by an attacker who successfully exploited the vulnerability? An attacker who successfully exploited this vulnerability could create, modify, or delete files in the security context of the "NT AUTHORITY\SYSTEM" account.