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cve recordhighexploited in the wildzero day3 of 3 cataloguesransomwareexploit reported

CVE-2022-40684

Fortinet · Multiple Products · Fortinet Multiple Products Authentication Bypass Vulnerability

· Added to CISA KEV
CVSS—
Severityhigh
Weakness—
EPSS100.0%100.0th percentile
Exploited3 KEV sources
Ransomware useKnown
Federal fix dueNov 1, 2022
patch window

Called exploited 8 days before disclosure.

Measured from the CVE publication date to the earliest of 3 KEV catalogues that list it.

The life of this vulnerability

  1. CVE published
  2. First KEV listing8d
  3. Last KEV listing1d
  4. Last sighting3.9y

Gaps are compressed to equal steps. The elapsed time is printed under each.

Which catalogues call it exploited

Sources3 of 3
Listings differ by1 d
Strongest claimconfirmed

3 catalogues list it. CIRCL aggregates the others and is shown but not counted.

Public exploitation evidence

867 public reports collected from VulnCheck and CIRCL, first on Oct 10, 2022. Each links to its original source. We have not verified them.

Description

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.

Required action (CISA)

Apply updates per vendor instructions.

References

← Back to the CVE Tracker

Our coverage of CVE-2022-40684

CVE-2026-24858high

FortiBleed: Credential Reuse, Legacy Hashes, and the Risk of Internet-Exposed FortiGate Devices

The cybersecurity landscape is grappling with the fallout from "FortiBleed," a widespread credential abuse campaign targeting internet-exposed FortiGate devices. Public reports emerged in June 2026 detailing extensive datasets containing Fortinet-related URLs, device records, usernames, and credentials. This activity is not attributed to a single new vulnerability but rather the reuse of…