CVE-2024-22543Public exploitNetwork attack vector

Privilege escalation via reusable leaked session identifier

Published Feb 27, 2024 · Updated Aug 16, 2024

Authentication bypass in Linksys E1700 firmware 1.0.04 build 3 allows remote authenticated users to escalate privileges through crafted requests. The management interface continues accepting a leaked session identifier for /goform/* and ExportSettings operations instead of expiring it. Exploitation requires an authenticated management session and user interaction, and it enables unauthorized access to protected router functions.

CVSS severity6.1
Medium
EPSS probability1.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Linksys E1700 firmware 1.0.04 build 3 allows remote authenticated users to escalate privileges through crafted requests. The management interface continues accepting a leaked session identifier for /goform/* and ExportSettings operations instead of expiring it. Exploitation requires an authenticated management session and user interaction, and it enables unauthorized access to protected router functions.

The record

CVE
CVE-2024-22543
Published
Feb 27, 2024
Updated
Aug 16, 2024
Vendor
Linksys
Product
E1700 N300 Wi-Fi Router
Classifications
CWE-613, T1550.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 16, 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=1.0.04\(build3\)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Linksys · E1700 N300 Wi-Fi Routerversion=1.0.04\(build3\)

Published CVSS scores

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/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 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 exploitPublished

Weakness, pattern, technique

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