PT-2026-2690 · Microsoft · Windows Ntfs+1

Immortalp0Ny + 1 · Publicado 2025-10-03 · Atualizado 2026-02-17 · CVE-2026-20840

Positive Technologies (AI Summary)

CVSS v3.1

7.8

Alta

Vetor base

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 NTFS (affected versions not specified)

Description A heap-based buffer overflow exists in Windows NTFS that could allow an authorized attacker to execute code locally. Remote attackers may be able to execute arbitrary code and affect the system.

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

RCE

Heap Based Buffer Overflow

Enumeração de Fraquezas

CWE-122

Identificadores relacionados

BDU:2025-12465

CVE-2026-20840

Produtos afetados

Windows

Windows Ntfs

Referências · 11

• https://twitter.com/cvedatabase/status/2019343238214127621 · Publicação no Twitter
• https://bdu.fstec.ru/vul/2025-12465 · Nota de Segurança
• https://nvd.nist.gov/vuln/detail/CVE-2026-20840 · Nota de Segurança
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20840 · Nota de Segurança
• https://twitter.com/immortalp0ny/status/2011371505960264114 · Publicação no Twitter
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20840 · Aviso do Fabricante
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-20840 · Aviso do Fabricante
• https://cybersecurity-help.cz/vulnerabilities/121344 · Nota
• https://osv.dev/vulnerability/CVE-2026-20840 · Aviso do Fabricante
• https://twitter.com/CVEnew/status/2011759675365101776 · Publicação no Twitter
• https://dbugs.ptsecurity.com/vulnerability/PT-2026-2690 · Nota