CVE-2018-0886 Auth bypass in Windows
Remote attackers can execute arbitrary code and escalate privileges by exploiting improper authentication validation in the CredSSP protocol.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2018-0886?
CVE-2018-0886 is a high-severity authentication bypass vulnerability in Microsoft Windows 10, published on 14 Mar 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
The Credential Security Support Provider protocol (CredSSP) in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1 and RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and 1709 Windows Server 2016 and Windows Server, version 1709 allows a remote code execution vulnerability due to how CredSSP validates request during the authentication process, aka "CredSSP Remote Code Execution Vulnerability".
Weakness: CWE-287
Which versions are affected by CVE-2018-0886?
It affects 7 products.
Linux distribution packages (2)
python-pyspnego openSUSE:Tumbleweed | All versions | 0.11.2-1.4 |
python-pyspnego openSUSE:Tumbleweed | All versions | 0.5.0-1.1 |
Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 1 more.
How do I fix CVE-2018-0886?
Apply the vendor's patch.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2018-0886 being exploited?
There is no known exploitation of CVE-2018-0886 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry and 1 proofs of concept on GitHub.
Other vulnerabilities in Microsoft Windows 10
- CVE-2015-2426 Microsoft Windows Adobe Type Manager Library Remote Code Execution
- CVE-2015-1769 Microsoft Windows Mount Manager Privilege Escalation
- CVE-2020-1467 Windows Hard Link Elevation of Privilege Vulnerability
- CVE-2021-26424 Windows TCP/IP Remote Code Execution Vulnerability
- CVE-2021-28476 Windows Hyper-V Remote Code Execution Vulnerability
Sources
Also known as GHSA-hrh9-4g5w-7q9j, openSUSE-SU-2024:12385-1, openSUSE-SU-2025:15103-1.