CVE-2015-0016
Directory traversal vulnerability in the TS WebProxy (aka TSWbPrxy) component in Microsoft Windows Vista SP2, Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows remote attackers to gain privileges via a crafted pathname in an executable file, as demonstrated by a transition from Low Integrity to Medium Integrity, aka "Directory Traversal Elevation of Privilege Vulnerability."
Key facts
- CVSS score
- 7.8 (v3.1)
- Severity
- HIGH
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- Weakness (CWE)
- CWE-22
- EPSS score
- 75.8% (100th percentile)
- In CISA KEV
- Yes, added May 25, 2022
- In EU EUVD
- Yes (EUVD-2015-0054)
- Published
- January 13, 2015
- NVD last modified
- June 17, 2026
- Status
- Analyzed
CISA Known Exploited Vulnerability
Microsoft Windows TS WebProxy Directory Traversal Vulnerability
Added to the KEV catalog on May 25, 2022; federal remediation due June 15, 2022.
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2015-0054 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 22, 2025.
View on the EU Vulnerability DatabaseAffected products
- microsoft / windows 7
- microsoft / windows 8
- microsoft / windows 8.1
- microsoft / windows rt
- microsoft / windows rt 8.1
- microsoft / windows server 2008
- microsoft / windows server 2012
- microsoft / windows server 2012
- microsoft / windows vista
Certified products that may be affected
15 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 15 in the Security Certifications Explorer.
References
- http://blog.trendmicro.com/trendlabs-security-intelligence/cve-2015-0016-escaping-the-internet-explorer-sandbox/(Exploit)
- http://packetstormsecurity.com/files/130201/MS15-004-Microsoft-Remote-Desktop-Services-Web-Proxy-IE-Sandbox-Escape.html(Exploit, Third Party Advisory, VDB Entry)
- http://secunia.com/advisories/62076(Broken Link)
- http://www.exploit-db.com/exploits/35983(Exploit, Third Party Advisory, VDB Entry)
- http://www.securityfocus.com/bid/71965(Broken Link, Third Party Advisory, VDB Entry)
- http://www.securitytracker.com/id/1031524(Broken Link, Third Party Advisory, VDB Entry)
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-004(Patch, Vendor Advisory)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/99515(Third Party Advisory, VDB Entry)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/99516(Third Party Advisory, VDB Entry)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-0016(US Government Resource)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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