Public proof of conceptFix available

CVE-2018-0886

A public proof of concept exists; no exploitation attested.

Published2018-03-14
WeaknessCWE-287

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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".

Timeline

dates in UTC

2018-03-1417:29CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-0886?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-0886?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Microsoft windows 10

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD
1511.x	= 1511	no fix published	NVD
1607.x	= 1607	no fix published	NVD
1703.x	= 1703	no fix published	NVD
1709.x	= 1709	no fix published	NVD
1803.x	= 1803	no fix published	NVD

Microsoft windows server 2016

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD
1709.x	= 1709	no fix published	NVD
1803.x	= 1803	no fix published	NVD

Microsoft windows server 2008

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD
—	= r2	no fix published	NVD

4 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-18-198-03 CISA3 known affected
PEPPERL+FUCHS VisuNet RM, VisuNet PC, and Box Thin Client
VisuNet RM: All models · Box Thin Client BTC: All models · VisuNet PC: All models

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-18-198-03 · 3 productsPEPPRL+FUCHS HMI devices running RM Shell 4 should be updated with ‘RM Image 4 Security Patches 01/2017 to 05/2018' (18-33400C):
Mitigation from the vendor CISA ICSA-18-198-03 · 3 productsPEPPRL+FUCHS HMI devices running RM Shell 5 should be updated with ‘RM Image 5 Security: Windows Cumulative Security Patch 07/2018' (18-33624):
Mitigation from the vendor CISA ICSA-18-198-03 · 3 productsPEPPRL+FUCHS HMI devices running Windows 7 or Windows 10 should be updated by using the Windows Update mechanism. See Microsoft's security bulletin for more information:
Mitigation from the vendor CISA ICSA-18-198-03 · 3 productsAfter deploying the patch, all connected third-party clients or servers must use the latest version of the CredSSP protocol.
Mitigation from the vendor CISA ICSA-18-198-03 · 3 productsBe aware of the importance of installing these patches, as security will be enforced by the update. Security by default restriction might result in an error due to encryption oracle remediation. Updates should be installed on both the server and the HMI device; otherwise, system compatibility might…
Mitigation from the vendor CISA ICSA-18-198-03 · 3 productsFor more information CERT@VDE has released a security advisory

Advisories and patches

portal.msrc.microsoft.comPatch · Vendor Advisory

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedpreempt/credssp

Sources

NVDCVSS 3.07read 2026-10-23
NVDCVSS 2.07.6read 2026-10-23
NVDweakness (CWE)CWE-287read 2026-10-23
FIRST EPSSEPSS score82.0 %read 2026-10-23
PoC-in-GitHubproof of concept1read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2018-03-14
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2018-0886?

Is CVE-2018-0886 actively exploited?

Active exploitation of CVE-2018-0886 has not been confirmed. Its EPSS score was 82.0% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

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

CVE-2018-0886 has a CVSS v3 base score of 7 (HIGH severity), with vector string CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

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