CVE-2022-42475CISA KEVEPSS p99.9%

CVE-2022-42475Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability

Fortinet / FortiOS

Description

Multiple versions of Fortinet FortiOS SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthenticated, remote attacker to execute arbitrary code or commands via specifically crafted requests.

Scoring

CVSS 9.8 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS99.47% probability of exploitation · percentile 99.9% · 2026-07-14T12:03:54Z
Last modified2026-06-17

CISA KEV entry

Added to KEV: 2022-12-13

(incoming)1

TypeTargetConfidenceTier
KEVEntryFortinet FortiOS Heap-Based Buffer Overflow Vulnerabilitykev-cve-2022-424750%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Fortinet FortiOS Out-of-Bound Write Vulnerability
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Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.