CVE Watch14 ago 2026

CVE-2026-32202

Microsoft Windows Protection Mechanism Failure Vulnerability

CVSS

4.3

Medio

EPSS

4.9%

p92

KEV

SÍ

28 abr 2026

Exploit Today

0-100

Publicado: 14 abr 2026 · Última mod.: 14 ago 2026 · CWE-693

EPSS · 30d

4.9%EPSS · 30 días63.7%

2026-09-162026-10-14

Ficha del catálogo KEV

Producto

Microsoft / Windows

Vulnerabilidad

Microsoft Windows Protection Mechanism Failure Vulnerability

Añadido a KEV

28 abr 2026

Remediar antes de

12 may 2026

Uso conocido en ransomware

Descripción resumida

Microsoft Windows Shell contains a protection mechanism failure vulnerability that allows an unauthorized attacker to perform spoofing over a network.

Acción requerida

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notas

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-32202 ; https://nvd.nist.gov/vuln/detail/CVE-2026-32202

Descripción técnica

Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.

Referencias oficiales

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CVE-2026-104024—

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———Path Traversal (CWE-22) in the execute_obj function of the archive object viewer (peach.pas) in PeaZip 11.2.0 and earlier on Windows allows an attacker who convinces a victim to preview an entry of a crafted archive via the "Preview with... -> Associated application" action (Shift+Ctrl+O) to execute an arbitrary program already present on the victim's system, with no warning dialog. The function validates only outname (PeaZip's own temporary directory) with checkfiledirname, while the string actually executed is the concatenation outname+tempstring; tempstring is taken verbatim from the archive entry name (StringGridList.Cells[12,...]) and is never validated. checkfiledirname (list_utils.pas) rejects control and reserved characters in the file name but performs no ".." path-containment check, so an entry named ../../../../Windows/System32/calc.exe escapes the extraction directory and is passed to cp_open -> ShellExecuteW; the extracting backend (7-Zip) strips the traversal while the opener does not. In addition, the SECEXTCONST dangerous-extension confirmation prompt is implemented only in the double-click handler (grid_obj_open) and not on this preview route, so an executable inside an archive reaches ShellExecuteW unannounced, and where the prompt does fire it names the entry's display name rather than the resolved path that will run. Arbitrary code execution was demonstrated with a proof of concept against official PeaZip builds, confirmed on two archive formats (.zip and .tar) to show the defect is in PeaZip's own path handling and not in a single format parser.6h CVE-2026-1108664.7 MED

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