CVE-2024-40119Public exploitNetwork attack vector

Admin account takeover via forged password change

Published Jul 17, 2024 · Updated Aug 2, 2024

Cross-site request forgery in Nepstech NTPL-XPON1GFEVN Firmware 2.0.1 allows remote attackers to change the administrator password. The /cgi-bin/mag-account.asp handler accepts an auto-submitted cross-origin POST containing replacement credentials without anti-CSRF validation. An authenticated administrator must visit attacker-controlled HTML, after which the attacker can take over the router's administrative account.

CVSS severity8.8
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Nepstech NTPL-XPON1GFEVN Firmware 2.0.1 allows remote attackers to change the administrator password. The /cgi-bin/mag-account.asp handler accepts an auto-submitted cross-origin POST containing replacement credentials without anti-CSRF validation. An authenticated administrator must visit attacker-controlled HTML, after which the attacker can take over the router's administrative account.

The record

CVE
CVE-2024-40119
Published
Jul 17, 2024
Updated
Aug 2, 2024
Vendor
Nepstech
Product
NTPL-XPON1GFEVN Firmware
Classifications
CWE-352, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=2.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Nepstech · NTPL-XPON1GFEVN Firmwareversion=2.0.1

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1189Drive-by Compromise

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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