Actively exploited
Listed in CISA’s Known Exploited Vulnerabilities catalog since October 11, 2022.
CVE-2022-40684
Fortinet Multiple Products Authentication Bypass Vulnerability
Added to KEV October 11, 2022
Alert details
- Source feed
- CISA KEV
- CVE ID
- CVE-2022-40684
- CWE
- CWE-288
- Affected products
- Multiple Products · Fortinet Multiple Products · Fortinet
What happened
Fortinet FortiOS, FortiProxy, and FortiSwitchManager contain an authentication bypass vulnerability that could allow an unauthenticated attacker to perform operations on the administrative interface via specially crafted HTTP or HTTPS requests.
What it means for your business
Fortinet Multiple Products is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2022-40684). Fortinet FortiOS, FortiProxy, and FortiSwitchManager contain an authentication bypass vulnerability that could allow an unauthenticated attacker to perform operations on the administrative interface via specially crafted HTTP or HTTPS requests. CISA remediation due date: 2022-11-01. If you need help checking exposure, call (864) 335-9223.
Required action
Apply updates per vendor instructions.
CISA due date: November 1, 2022
Sources
Related briefs
Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability
Fortinet Multiple Products is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-25249). Fortinet FortiOS, FortiSwitchManager, and FortiSASE contain a heap-based buffer overflow vulnerability that allows an attacker to execute unauthorized code or commands via specially crafted packets. CISA remediation due date: 2026-09-12. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiMail Path Traversal Vulnerability
Fortinet FortiMail is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-104286). Fortinet FortiMail contains a path traversal and an improper neutralization of NULL byte or NULL character vulnerability that may allow an unauthenticated attacker to write arbitrary files on the underlying system via crafted HTTP or HTTPS requests. CISA remediation due date: 2026-10-04. If you need help checking exposure, call (864) 335-9223.
Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability
Citrix NetScaler is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-88779). Citrix NetScaler ADC (formerly Citrix ADC) and Citrix NetScaler Gateway (formerly Citrix Gateway) contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for a denial of service. CISA remediation due date: 2026-10-07. If you need help checking exposure, call (864) 335-9223.
Heap buffer overflow in ANGLE in Microsoft Edge vulnerability
Heap buffer overflow in ANGLE in Microsoft Edge vulnerability (CVE-2025-10502) was added to Microsoft’s security update guidance. Information published. If you need help checking exposure, call (864) 335-9223.
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