PT-2026-2657 · Microsoft · Windows

Publicado 2026-01-13 · Atualizado 2026-01-17 · CVE-2026-20804

Positive Technologies (AI Summary)

CVSS v3.1

7.7

Alta

Vetor base

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

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

Description A flaw in Windows Hello’s privilege assignment can allow an attacker to perform tampering locally. This issue allows attackers to affect the system.

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

Incorrect Privilege Assignment

Enumeração de Fraquezas

CWE-266

Identificadores relacionados

BDU:2026-00479

CVE-2026-20804

Produtos afetados

Windows

Referências · 9

• https://cybersecurity-help.cz/vdb/SB2026011422 · Nota
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20804 · Aviso do Fabricante
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-20804 · Aviso do Fabricante
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20804 · Nota de Segurança
• https://twitter.com/CVEnew/status/2012669658760192308 · Publicação no Twitter
• https://nvd.nist.gov/vuln/detail/CVE-2026-20804 · Nota de Segurança
• https://bdu.fstec.ru/vul/2026-00479 · Nota de Segurança
• https://osv.dev/vulnerability/CVE-2026-20804 · Aviso do Fabricante
• https://dbugs.ptsecurity.com/vulnerability/PT-2026-2657 · Nota