PT-2026-2673 · Microsoft · Windows File Explorer+1

Published 2026-01-13 · Updated 2026-01-17 · CVE-2026-20823

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description A flaw exists in Windows File Explorer that could allow an attacker to disclose sensitive information locally. An authorized attacker can leverage this to gain access to information they are not permitted to view.

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

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

BDU:2026-00570

CVE-2026-20823

Affected Products

Windows

Windows File Explorer

References · 7

• https://bdu.fstec.ru/vul/2026-00570 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-20823 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-20823 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20823 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20823 · Security Note
• https://osv.dev/vulnerability/CVE-2026-20823 · Vendor Advisory
• https://twitter.com/CVEnew/status/2012490418013745525 · Twitter Post