CVE-2024-40495Public exploit

Authenticated code execution via parental-control handler

Published Jul 24, 2024 · Updated Jul 9, 2026

Code injection in Linksys E2500 firmware 2.0.00 allows remote authenticated users to execute arbitrary code through parental controls. The public record names hnd_parentalctrl_unblock as the affected function but does not disclose the input field or unsafe operation. Access requires an authenticated, adjacent-network position, and successful exploitation grants control over the router firmware context.

CVSS severity8.0
High
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Linksys E2500 firmware 2.0.00 allows remote authenticated users to execute arbitrary code through parental controls. The public record names hnd_parentalctrl_unblock as the affected function but does not disclose the input field or unsafe operation. Access requires an authenticated, adjacent-network position, and successful exploitation grants control over the router firmware context.

The record

CVE
CVE-2024-40495
Published
Jul 24, 2024
Updated
Jul 9, 2026
Vendor
Linksys
Product
Linksys E2500
Classifications
CWE-94, T1210
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 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=2.0.00

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Linksys · Linksys E2500version=2.0.00

Published CVSS scores

8.0CISA-ADPCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1210Exploitation of Remote Services

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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