CVE-2022-45862Network attack vector

Post-logout session reuse via incomplete invalidation

Published Aug 13, 2024 · Updated Aug 13, 2024

Insufficient session expiration in Fortinet appliance GUIs allows remote attackers to reuse web sessions after users log out. The GUI logout path does not invalidate the server-side web session, so a previously acquired session remains accepted for authenticated requests. Exploitation requires acquisition of a valid web session before logout; the surviving session retains only the privileges already granted to that session.

CVSS severity8.8
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient session expiration in Fortinet appliance GUIs allows remote attackers to reuse web sessions after users log out. The GUI logout path does not invalidate the server-side web session, so a previously acquired session remains accepted for authenticated requests. Exploitation requires acquisition of a valid web session before logout; the surviving session retains only the privileges already granted to that session.

The record

CVE
CVE-2022-45862
Published
Aug 13, 2024
Updated
Aug 13, 2024
Vendor
Fortinet
Product
FortiOS
Classifications
CWE-613, T1550.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 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=6.4.0 <=6.4.11
  2. Affected versionversion=7.0.0 <=7.0.7
  3. Affected versionversion=7.2.0 <=7.2.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fortinet · FortiOSversion=6.4.0 <=6.4.11; version=7.0.0 <=7.0.7; version=7.2.0 <=7.2.5
Fortinet · FortiPAMversion=1.0.0 <=1.0.3; version=1.1.0 <=1.1.2; version=1.2.0; version=1.3.0
Fortinet · FortiSwitch Managerversion=7.0.0 <=7.0.2; version=7.2.0 <=7.2.1
Fortinet · FortiProxyversion=7.0.0 <=7.0.18; version=7.2.0 <=7.2.11

Published CVSS scores

8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.5FortinetCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-613Insufficient Session Expiration
T1550.004Use Alternate Authentication Material: Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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