How severe is CVE-2018-0886?

CVE-2018-0886 has a CVSS score of 7/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2018-0886?

Affected package information for CVE-2018-0886 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2018-0886?

No fixed version has been published for CVE-2018-0886 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2018-0886 actively exploited in the wild?

Yes. There are 8 known exploit references for CVE-2018-0886, including 1 documented proof-of-concept exploit on Exploit-DB and 5 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2018-0886?

CVE-2018-0886 has an EPSS (Exploit Prediction Scoring System) score of 91.0%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

What type of vulnerability is CVE-2018-0886?

CVE-2018-0886 is classified as Improper Authentication (CWE-287). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2018-0886?

CVE-2018-0886 affects microsoft windows 7; microsoft windows 8.1; microsoft windows 10 (5 versions, e.g. 1511, 1607, 1703…); microsoft windows rt 8.1, and 3 more product(s). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2018-0886 published, and has it been updated?

CVE-2018-0886 was published on March 14, 2018 and was last updated on November 21, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CVE-2018-0886

HIGH

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…

Published

Mar 14, 2018

Updated

Nov 21, 2024

Affected

0 pkgs

Patched

None yet

Exploits

8 known

EPSS Exploitation Probability

via FIRST.org ↗

91.0%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

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".

Affected Products

7 products · 17 configurations

windows 7microsoft

all

windows 8.1microsoft

all

windows 10microsoft

5 versions

15111607170317091803

windows rt 8.1microsoft

all

windows server 2008microsoft

1 version

windows server 2012microsoft

1 version

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-44453remotewindows

Microsoft Credential Security Support Provider - Remote Code Execution

by Preempt · Apr 13, 2018

Exploit-DB Source

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2018-0886 in your stack?

O3 detects CVE-2018-0886 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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CVSS Score

7/10

CVSS v3 base score

Vector breakdown

AV:Attack Vector

Local

AC:Attack Complexity

High

PR:Privileges Required

None

UI:User Interaction

Required

S:Scope

Unchanged

C:Confidentiality

High

I:Integrity

High

A:Availability

High

Raw vector

CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE Classification

CWE-287Improper Authentication

Weaponization

No known public exploit tooling found.

Timeline

Disclosed

Mar 14, 2018

First exploit

Apr 13, 2018

Last updated

Nov 21, 2024

Identifiers

CVE-2018-0886

References

Advisorysecurityfocus.com Advisorysecuritytracker.com Advisoryics-cert.us-cert.gov Advisorysecurityfocus.com Advisorysecuritytracker.com Advisoryics-cert.us-cert.gov Fixportal.msrc.microsoft.com Fixportal.msrc.microsoft.com Exploit / PoCblog.preempt.com Exploit / PoCgithub.com Exploit / PoCexploit-db.com Exploit / PoCblog.preempt.com Exploit / PoCgithub.com Exploit / PoCexploit-db.com

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