CVE-2014-6321

Key facts

CVSS score

10.0 (v2.0)

Severity

HIGH

CVSS vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Weakness (CWE)

CWE-94

EPSS score

96.0% (100th percentile)

In CISA KEV

No

In EU EUVD

Yes (EUVD-2014-6205)

Published

November 11, 2014

NVD last modified

June 17, 2026

Status

Modified

Affected products

• microsoft / windows 7
• microsoft / windows 8
• microsoft / windows 8.1
• microsoft / windows rt
• microsoft / windows rt 8.1
• microsoft / windows server 2003
• microsoft / windows server 2008
• microsoft / windows server 2008
• microsoft / windows server 2008
• microsoft / windows server 2012
• microsoft / windows server 2012
• microsoft / windows vista

Certified products that may be affected

16 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

• Microsoft Windows 8 and Windows RT - Microsoft Corporation - Common Criteria CCEVS-VR-VID-10620-2015 - archived
• Windows 7 BitLocker™ Drive Encryption - Microsoft Corporation - FIPS 140 1332 - historical
• Microsoft Windows 7 Kernel Mode Cryptographic Primitives Library (cng.sys) - Microsoft Corporation - FIPS 140 1328 - historical
• Microsoft Windows Vista Kernel Mode Security Support Provider Interface (ksecdd.sys) - Microsoft Corporation - FIPS 140 1000 - historical
• Microsoft Windows Vista Cryptographic Primitives Library (bcrypt.dll) - Microsoft Corporation - FIPS 140 1001 - historical

See all 16 in the Security Certifications Explorer.

References

• http://blog.beyondtrust.com/triggering-ms14-066(Exploit, Third Party Advisory)
• http://marc.info/?l=bugtraq&m=142384364031268&w=2(Exploit, Mailing List, Third Party Advisory)
• http://secunia.com/advisories/59800(Third Party Advisory)
• http://www.kb.cert.org/vuls/id/505120(Third Party Advisory, US Government Resource)
• http://www.securityfocus.com/bid/70954(Third Party Advisory, VDB Entry)
• http://www.securitysift.com/exploiting-ms14-066-cve-2014-6321-aka-winshock/(Exploit, Third Party Advisory)
• http://www.us-cert.gov/ncas/alerts/TA14-318A(Third Party Advisory, US Government Resource)
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-066(Patch, Vendor Advisory)