PT-2026-58172 · Microsoft · Windows

CVE-2026-49800 · Published 2026-07-14 · Updated 2026-07-22

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Windows (affected versions not specified)

Description An integer overflow or wraparound in the Web Proxy Auto-Discovery Protocol (WPAD) allows an authorized attacker to elevate privileges locally.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Heap Based Buffer Overflow

Integer Overflow

Weakness Enumeration

CWE-122

CWE-190

Related Identifiers

BDU:2026-09985

CVE-2026-49800

Affected Products

Windows

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-49800 · Security Note
• https://bdu.fstec.ru/vul/2026-09985 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49800 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-49800 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-49800 · Security Note
• https://t.me/cveNotify/212136 · Telegram Post