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MSRC compact vulnerability detail

CVE-2025-47987 · Credential Security Support Provider Protocol (CredSSP) Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Cred SSProvider Protocol allows an authorized attacker to elevate privileges locally.

Severity
Important
Impact
Elevation of Privilege
CVSS
7.8 base · 6.8 temporal
Release
2025-07-08
Signals
Windows Cred SSProvider Protocol Elevation of Privilege Exploited: No Publicly disclosed: No Exploitability: Exploitation More Likely
CWE
CWE-122: Heap-based Buffer Overflow CWE-190: Integer Overflow or Wraparound
Patch Diff
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Description
Heap-based buffer overflow in Windows Cred SSProvider Protocol allows an authorized attacker to elevate privileges locally.
FAQ / Articles
Windows Cred SSProvider Protocol Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Cred SSProvider Protocol 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.