CVE-2015-0016

Name: CVE-2015-0016
Creator: NVD / NIST
Published: 2015-01-13T22:59:07.19+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10Actively ExploitedEPSS 75.94%

Last modified Jun 17, 2026

CVE-2015-0016 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.". CISA has confirmed active exploitation in the wild. EPSS estimates a 75.94% chance of exploitation in the next 30 days.

Description

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."

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

75.94%

99.5th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Jun 15, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Microsoft	Windows 7	All versions	Sp1
Microsoft	Windows 8	All versions	—
Microsoft	Windows 8.1	All versions	—
Microsoft	Windows Rt	All versions	Gold
Microsoft	Windows Rt 8.1	All versions	—
Microsoft	Windows Server 2008	r2	Sp1
Microsoft	Windows Server 2012	All versions	Gold
Microsoft	Windows Server 2012	r2	—
Microsoft	Windows Vista	All versions	Sp2

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.htmlExploit, Third Party Advisory, VDB Entry
http://secunia.com/advisories/62076Broken Link
http://www.exploit-db.com/exploits/35983Exploit, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/71965Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1031524Broken Link, Third Party Advisory, VDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-004Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/99515Third Party Advisory, VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/99516Third 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.htmlExploit, Third Party Advisory, VDB Entry
http://secunia.com/advisories/62076Broken Link
http://www.exploit-db.com/exploits/35983Exploit, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/71965Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1031524Broken Link, Third Party Advisory, VDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-004Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/99515Third Party Advisory, VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/99516Third Party Advisory, VDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-0016US Government Resource

Timeline

Published: Jan 13, 2015
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2015-0016?

How severe is CVE-2015-0016?

CVE-2015-0016 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 75.94% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2015-0016?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-0016?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST