PT-2026-2700 · Microsoft · Windows

Howard Mcgreehan · Publicado 2026-01-13 · Atualizado 2026-02-16 · CVE-2026-20854

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 Microsoft Windows (affected versions not specified)

Description A use after free condition exists in the Windows Local Security Authority Subsystem Service (LSASS). This allows an authorized attacker to execute code over a network. Remote attackers can execute arbitrary code and affect the system. The vulnerability involves the use of memory after it has been freed.

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

RCE

Use After Free

Enumeração de Fraquezas

CWE-416

Identificadores relacionados

BDU:2026-00395

CVE-2026-20854

Produtos afetados

Windows

Referências · 13

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20854 · Aviso do Fabricante
• https://twitter.com/lsof/status/2013982052689789185 · Publicação no Twitter
• https://twitter.com/ThreatSynop/status/2011355945075388698 · Publicação no Twitter
• https://twitter.com/ThreatSynop/status/2011165017211560260 · Publicação no Twitter
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-20854 · Aviso do Fabricante
• https://twitter.com/TTheBattlefield/status/2012037669560221759 · Publicação no Twitter
• https://bdu.fstec.ru/vul/2026-00395 · Nota de Segurança
• https://twitter.com/ThreatSynop/status/2011448508906123721 · Publicação no Twitter
• https://twitter.com/CVEnew/status/2011181521340940321 · Publicação no Twitter
• https://twitter.com/vuldb/status/2011157098449780806 · Publicação no Twitter
• https://osv.dev/vulnerability/CVE-2026-20854 · Aviso do Fabricante
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20854 · Nota de Segurança
• https://nvd.nist.gov/vuln/detail/CVE-2026-20854 · Nota de Segurança