CVE-2024-50562Public exploitNetwork attack vector

Portal access via expired session-cookie replay

Published Jun 10, 2025 · Updated Aug 11, 2026

Insufficient session expiration in FortiOS SSL-VPN allows remote attackers holding a prior portal cookie to regain access. The portal accepts a previously issued session cookie after its session expires or the user logs out, restoring authenticated portal access. Exploitation requires possession of a cookie from an earlier login; Fortinet has not disclosed the underlying validation routine.

CVSS severity4.8
Medium
EPSS probability1.15%
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 FortiOS SSL-VPN allows remote attackers holding a prior portal cookie to regain access. The portal accepts a previously issued session cookie after its session expires or the user logs out, restoring authenticated portal access. Exploitation requires possession of a cookie from an earlier login; Fortinet has not disclosed the underlying validation routine.

The record

CVE
CVE-2024-50562
Published
Jun 10, 2025
Updated
Aug 11, 2026
Vendor
Siemens
Product
RUGGEDCOM APE1808
Classifications
CWE-613, T1550.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record 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=0 <*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · RUGGEDCOM APE1808version=0 <*
Fortinet · FortiOSversion=6.4.0 <=6.4.16; version=7.0.0 <=7.0.17; version=7.2.0 <=7.2.10; version=7.4.0 <=7.4.4; version=7.4.6; version=7.6.0
Fortinet · FortiPAMversion=1.0.0 <=1.0.3; version=1.1.0 <=1.1.2; version=1.2.0; version=1.3.0; version=1.4.0 <=1.4.1
Fortinet · FortiProxyversion=2.0.0 <=2.0.14; version=7.0.0 <=7.0.20; version=7.2.0 <=7.2.14; version=7.4.0 <=7.4.5; version=7.6.0

Published CVSS scores

4.8Fortinet, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

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.

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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 exploitPublished

Weakness, pattern, technique

CWE-613Insufficient Session Expiration
T1550.004Web Session Cookie

Public exploit references

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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