CVE-2015-0016
Published: May 25, 2022
Official Description
Directory traversal vulnerability in the TS WebProxy (TSWbPrxy) component in Microsoft Windows allows remote attackers to escalate privileges.
CISA KEV Advisory
Microsoft Windows TS WebProxy Directory Traversal Vulnerability
Directory traversal vulnerability in the TS WebProxy (TSWbPrxy) component in Microsoft Windows allows remote attackers to escalate privileges.
Apply updates per vendor instructions.
Risk Analysis
This directory traversal vulnerability in the TS WebProxy (TSWbPrxy) component in Microsoft Windows allows remote attackers to escalate privileges. With an EPSS score of 0.92494 and its inclusion in CISA's KEV, this flaw is highly likely to be exploited and poses a significant risk.
This vulnerability is actively exploited in the wild and is listed in CISA's KEV, confirming its active use by threat actors. The remote nature of the attack vector makes it particularly dangerous for privilege escalation.
Apply the latest security updates from Microsoft to address the directory traversal vulnerability in the TS WebProxy component. Implement least privilege principles and restrict network access to sensitive services.
Technical Analysis
CVE-2015-0016 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2015-0016 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2015-0016 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1