CVE-2015-0016: Microsoft Windows TS WebProxy Directory Traversal Vulnerability

CISA Known Exploited Vulnerabilities

Name

Microsoft Windows TS WebProxy Directory Traversal Vulnerability

Vendor

Microsoft

Product

Windows

Added to the catalog

2022-05-25

Due date for US federal agencies

2022-06-15

Weaknesses

CWE-22

Catalog version

2026.10.30

Directory traversal vulnerability in the TS WebProxy (TSWbPrxy) component in Microsoft Windows allows remote attackers to escalate privileges.

Required action (CISA)

Apply updates per vendor instructions.

Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.

Links in CISA's notes

• https://nvd.nist.gov/vuln/detail/CVE-2015-0016

Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

NVD analysis

Status

Analyzed

Published

2015-01-13T22:59:07.190

Last modified

2026-06-17T00:19:25.567

Weaknesses

CWE-22

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."

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)
• 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)

This product uses the NVD API but is not endorsed or certified by the NVD.

Read on 2026-11-02T23:41:28.906Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2015-0016

CVE record

Assigner

microsoft

State

PUBLISHED

Published

2015-01-13T22:00:00.000Z

Updated

2025-10-22T00:05:33.942Z

Problem types

n/a

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."

References

• 71965
• 1031524
• ms-windows-cve20150016-priv-esc(99515)
• http://blog.trendmicro.com/trendlabs-security-intelligence/cve-2015-0016-escaping-the-internet-explorer-sandbox/
• win-ms15kb3025421-update(99516)
• 35983
• 62076
• http://packetstormsecurity.com/files/130201/MS15-004-Microsoft-Remote-Desktop-Services-Web-Proxy-IE-Sandbox-Escape.html
• MS15-004

Read on 2026-11-03T00:25:38.906Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2015/0xxx/CVE-2015-0016.json

Defensive techniques (MITRE D3FEND)

D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.

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