cve 2026 49177

The cve 2026 49177 tag covers Microsoft’s July 14, 2026 security update for an Important-rated information disclosure vulnerability in the Windows TCP/IP stack. The issue, tracked as CVE-2026-49177, has a CVSS 3.1 base score of 5.5 and could expose sensitive data to an attacker who already has the access required to reach the affected networking component. Tagged coverage explains Microsoft’s confirmed assessment, the vulnerability’s inclusion in the July Patch Tuesday release, and the reported status that it was not publicly disclosed or known to be exploited when updates shipped. Use this page to follow the advisory and update-focused discussion.