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.

Affected

Microsoft · Windows 10 Version 1507 · Windows 10 Version 1607 · Windows 10 Version 1809 · Windows 10 Version 21H2 · Windows 10 Version 22H2 · Windows 11 version 22H2

CVSS v3.1 MICROSOFT

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

1.79% chance of exploitation in the next 30 days, 78th percentile

Published

2025-07-08

Updated

2026-02-13

Proof-of-concept exploits (2)

• Kryptoenix/CVE-2025-47987_PoC1★ · 2025-08-28
• kaleth4/CVE-2025-479870★ · 2026-05-04

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/52541

Security advisories

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47987

References

• CVE Record
• NVD entry

Related

• CVE-2014-6271
• CVE-2019-7711
• CVE-2021-44228
• CVE-2022-30190
• CVE-2024-6387
• CVE-2024-6409