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9 September 2026

Vulnerabilities first published on this day (UTC), newest first.

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All Critical High Medium Low Exploited only Public exploit

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Critical 9.8

CVE-2026-85103 Exploited

Heap-based Buffer Overflow in VPN Certificate ASN.1 Decoding

A heap-based buffer overflow in VPN certificate ASN.1 decoding may allow an unauthenticated remote attacker to execute arbitrary code on Check Point Quantum Security Management and Quantum Security Gateway systems.

Check Point Quantum Security Gateway Quantum Security Management Network devices

Sep 9, 2026
Critical 9.8

CVE-2026-85102 Exploited Public exploit EPSS 54%

Improper Certificate Validation in Quantum Security Gateway

Improper certificate trust validation during VPN negotiation in Check Point Quantum Security Gateway may allow an unauthenticated remote attacker to execute arbitrary code on the Gateway.

Check Point Quantum Security Gateway Network devices

Sep 9, 2026
KEV Sep 22, 2026
High 8.8

CVE-2026-87491 Exploited Public exploit

Out of bounds write in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code i…

Google Chrome chromium chromium Browsers Debian Wolfi

Sep 9, 2026
KEV Sep 9, 2026