CVE-2026-49180: CWE-59: Improper Link Resolution Before File Access ('Link Following') in Microsoft Windows 10 Version 1607
Improper link resolution before file access ('link following') in Universal Plug and Play (upnp.dll) allows an authorized attacker to disclose information locally.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-59, occurs due to improper link resolution before file access in the Universal Plug and Play (upnp.dll) on Windows 10 Version 1607 (build 10.0.14393.0). It allows an attacker with limited privileges to disclose information locally by exploiting the link following behavior. The CVSS v3.1 base score is 5.5, indicating medium severity. Microsoft has published an official fix to remediate this issue.
Potential Impact
An authorized attacker with low privileges can exploit this vulnerability to disclose local information. There is no impact on confidentiality, integrity, or availability beyond information disclosure. No known exploits are reported in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49180 to remediate this vulnerability.
CVE-2026-49180: CWE-59: Improper Link Resolution Before File Access ('Link Following') in Microsoft Windows 10 Version 1607
Description
Improper link resolution before file access ('link following') in Universal Plug and Play (upnp.dll) allows an authorized attacker to disclose information locally.
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-59, occurs due to improper link resolution before file access in the Universal Plug and Play (upnp.dll) on Windows 10 Version 1607 (build 10.0.14393.0). It allows an attacker with limited privileges to disclose information locally by exploiting the link following behavior. The CVSS v3.1 base score is 5.5, indicating medium severity. Microsoft has published an official fix to remediate this issue.
Potential Impact
An authorized attacker with low privileges can exploit this vulnerability to disclose local information. There is no impact on confidentiality, integrity, or availability beyond information disclosure. No known exploits are reported in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49180 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-27T23:44:09.623Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49180","vendor":"Microsoft"}]
Threat ID: 6a566f6b68715ace43e6b3e4
Added to database: 07/14/2026, 17:18:35 UTC
Last enriched: 08/13/2026, 14:22:13 UTC
Last updated: 08/28/2026, 22:52:11 UTC
Views: 59
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