CVE-2022-45861Network attack vector

Authenticated VPN service crash via uninitialized pointer

Published Mar 7, 2023 · Updated Oct 22, 2024

Uninitialized-pointer access in the SSL-VPN portal of FortiOS and FortiProxy allows remote authenticated users to crash sslvpnd. The portal processes an HTTP GET request through an uninitialized pointer, causing the SSL-VPN daemon to terminate. Authenticated SSL-VPN access is required, and exploitation interrupts VPN service without reported data disclosure or modification.

CVSS severityUnavailable
Unscored
EPSS probability0.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uninitialized-pointer access in the SSL-VPN portal of FortiOS and FortiProxy allows remote authenticated users to crash sslvpnd. The portal processes an HTTP GET request through an uninitialized pointer, causing the SSL-VPN daemon to terminate. Authenticated SSL-VPN access is required, and exploitation interrupts VPN service without reported data disclosure or modification.

The record

CVE
CVE-2022-45861
Published
Mar 7, 2023
Updated
Oct 22, 2024
Vendor
Fortinet
Product
FortiOS
Classifications
CWE-824, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 22, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.2.0 <=6.2.13
  2. Affected versionversion=6.4.0 <=6.4.11
  3. Affected versionversion=7.0.0 <=7.0.9
  4. Affected versionversion=7.2.0 <=7.2.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Fortinet · FortiOSversion=6.2.0 <=6.2.13; version=6.4.0 <=6.4.11; version=7.0.0 <=7.0.9; version=7.2.0 <=7.2.3
Fortinet · FortiProxyversion=1.1.5 <=1.1.6; version=1.2.0 <=1.2.13; version=2.0.0 <=2.0.11; version=7.0.0 <=7.0.7; version=7.2.0 <=7.2.1

Published CVSS scores

6.4FortinetCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:F/RL:X/RC:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-824Access of Uninitialized Pointer
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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