CVE-2026-47291: stato di sfruttamento e disponibilità della patch

CVE-2026-47291 · CVSS 9.8 CRITICAL · EPSS 25% · patch disponibile

Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network.

CVE-2026-47291 viene sfruttato?

• Non è nel catalogo CISA KEV.
• EPSS stima la probabilità di sfruttamento nei prossimi 30 giorni al 25%.
• Codice di exploit pubblico: nessuno trovato nelle fonti monitorate.

Quali prodotti e versioni sono interessati?

• Microsoft · Windows 10 Version 1607 · >= 10.0.14393.0, < 10.0.14393.9234
• Microsoft · Windows 10 Version 1809 · >= 10.0.17763.0, < 10.0.17763.8880
• Microsoft · Windows 10 Version 21H2 · >= 10.0.19044.0, < 10.0.19044.7417
• Microsoft · Windows 10 Version 22H2 · >= 10.0.19045.0, < 10.0.19045.7417
• Microsoft · Windows 11 version 23H2 · >= 10.0.22631.0, < 10.0.22631.7219
• Microsoft · Windows 11 Version 24H2 · >= 10.0.26100.0, < 10.0.26100.8655
• Microsoft · Windows 11 Version 25H2 · >= 10.0.26200.0, < 10.0.26200.8655
• Microsoft · Windows 11 version 26H1 · >= 10.0.28000.0, < 10.0.28000.2269
• Microsoft · Windows Server 2012 · >= 6.2.9200.0, < 6.2.9200.26132
• Microsoft · Windows Server 2012 (Server Core installation) · >= 6.2.9200.0, < 6.2.9200.26132
• Microsoft · Windows Server 2012 R2 · >= 6.3.9600.0, < 6.3.9600.23228
• Microsoft · Windows Server 2012 R2 (Server Core installation) · >= 6.3.9600.0, < 6.3.9600.23228
• Microsoft · Windows Server 2016 · >= 10.0.14393.0, < 10.0.14393.9234
• Microsoft · Windows Server 2016 (Server Core installation) · >= 10.0.14393.0, < 10.0.14393.9234
• Microsoft · Windows Server 2019 · >= 10.0.17763.0, < 10.0.17763.8880
• Microsoft · Windows Server 2019 (Server Core installation) · >= 10.0.17763.0, < 10.0.17763.8880
• Microsoft · Windows Server 2022 · >= 10.0.20348.0, < 10.0.20348.5256
• Microsoft · Windows Server 2025 · >= 10.0.26100.0, < 10.0.26100.32995
• Microsoft · Windows Server 2025 (Server Core installation) · >= 10.0.26100.0, < 10.0.26100.32995
• Microsoft · Windows 10 Version 1809 for 32-bit Systems
• Microsoft · Windows 10 Version 1809 for x64-based Systems
• Microsoft · Windows Server 2022 (Server Core installation)
• Microsoft · Windows 10 Version 21H2 for 32-bit Systems
• Microsoft · Windows 10 Version 21H2 for ARM64-based Systems
• Microsoft · Windows 10 Version 21H2 for x64-based Systems
• Microsoft · Windows 11 Version 25H2 for ARM64-based Systems
• Microsoft · Windows 11 Version 25H2 for x64-based Systems
• Microsoft · Windows 11 Version 23H2 for ARM64-based Systems
• Microsoft · Windows 11 Version 23H2 for x64-based Systems
• Microsoft · Windows 11 Version 26H1 for ARM64-based Systems
• Microsoft · Windows 11 version 26H1 for x64-based Systems
• Microsoft · Windows 10 Version 1607 for 32-bit Systems
• Microsoft · Windows 10 Version 1607 for x64-based Systems

Esiste una patch?

Sì. Aggiorna a una di queste versioni o successive:

Dal record CVE di Microsoft · Advisory di Microsoft

• KB5094123
• KB5094128
• KB5094127
• KB5094125
• KB5094126
• KB5093998
• KB5095051
• KB5094122
• KB5094042
• KB5094041

Dalla Security Update Guide di Microsoft · Advisory di Microsoft

Cosa ha pubblicato PlainSec su CVE-2026-47291

• ShareFile shutdown signals more than maintenance (2026-07-13)
• Windows now has a remote-to-SYSTEM path (2026-07-10)

Fonti primarie

• NVD record
• Microsoft KB5094123
• Microsoft KB5094128
• Microsoft KB5094127
• Microsoft KB5094125
• Microsoft KB5094126
• Microsoft KB5093998
• Microsoft KB5095051
• Microsoft KB5094122
• Microsoft KB5094042

KEV ed EPSS vengono ricontrollati ogni giorno. Scheda aggiornata il 2026-10-25.