CVE Watch20 oct 2026

CVE-2026-107886

OpenPrinting CUPS before 2.4.20 contains a double-free in printer-class management. When CUPS-Add-Modify-Class replaces an existing class me

CVSS

2.3

Bajo

EPSS

0.2%

p15

KEV

—

Exploit Today

0-100

Publicado: 9 oct 2026 · Última mod.: 20 oct 2026 · CWE-415

EPSS · 30d

0.1%EPSS · 30 días0.2%

2026-10-092026-11-05

Descripción técnica

OpenPrinting CUPS before 2.4.20 contains a double-free in printer-class management. When CUPS-Add-Modify-Class replaces an existing class member list, add_class() frees pclass->printers without clearing the pointer. If subsequent validation fails, the class retains the dangling pointer; CUPS-Delete-Class subsequently frees the same allocation in cupsdDeletePrinter(). A client authorized to modify and delete classes can cause scheduler-wide denial of service. The default policy requires @SYSTEM privileges.

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