PT-2026-2736 · Microsoft · Windows Smb Server+1

CVE-2026-20934 · Publicado 2026-01-13 · Atualizado 2026-01-13

Positive Technologies (AI Summary)

CVSS v3.1

7.5

Alta

Vetor base

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

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

Description A race condition exists in Windows SMB Server due to improper synchronization during concurrent execution using a shared resource. This allows an authorized attacker to potentially elevate privileges over a network.

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

Race Condition

Enumeração de Fraquezas

CWE-362

Identificadores relacionados

BDU:2026-00505

CVE-2026-20934

Produtos afetados

Windows

Windows Smb Server

Referências · 8

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-20934 · Aviso do Fabricante
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20934 · Aviso do Fabricante
• https://twitter.com/CVEnew/status/2011181541771321634 · Publicação no Twitter
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20934 · Nota de Segurança
• https://nvd.nist.gov/vuln/detail/CVE-2026-20934 · Nota de Segurança
• https://cybersecurity-help.cz/vdb/SB2026011390 · Nota
• https://osv.dev/vulnerability/CVE-2026-20934 · Aviso do Fabricante
• https://bdu.fstec.ru/vul/2026-00505 · Nota de Segurança