CVE-2022-42475
Fortinet FortiOS: Out-of-bounds Write
- Act now
- CVSS 9.8 Critical
- CISA KEV, due
- VulnCheck KEV
- ENISA exploited-vulnerability catalog
What it is
ReportedMultiple 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.
Dates
What is affected
ReportedFortinet; FortiOS. Product-level identification only; no affected-version conclusion is available from this field.
Dates
Urgency and basis
Tracker computedAct now
Current priority score and EPSS: loading from the tracker record. They are read when this page loads and are not shown without JavaScript. They change daily and are not part of "Source last updated".
Dates
Exploitation evidence
ReportedActive exploitation · CISA KEV · VulnCheck KEV · ENISA exploited-vulnerability catalog
Dates
What to do
ReportedApply updates per vendor instructions.
Source remediation ↗Dates
Detection and validation
Mapped metadata availability only. These signals do not change priority.
Sigma
Ursnif Malware C2 URL Pattern. Level: critical. Status: stable.
Open Sigma metadataAtomic
DLL Side-Loading using the dotnet startup hook environment variable. Executor: command_prompt. Elevation: not reported.
Open Atomic metadataNuclei
Not mapped by tracked sources.
Evidence detail
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