CVE-2024-57681Network attack vector

Unauthenticated ALG service changes via unchecked POST

Published Jan 16, 2025 · Updated Feb 3, 2025

Incorrect authorization in form2alg.cgi in D-Link DIR-816 A2 firmware 1.10CNB05_R1B011D88210 allows remote attackers to alter the ALG service. The CGI handler accepts a crafted POST request without enforcing authorization before applying attacker-controlled ALG service settings. No credentials or user interaction are required, and the documented consequence is limited to unauthorized ALG service changes.

CVSS severity5.3
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in form2alg.cgi in D-Link DIR-816 A2 firmware 1.10CNB05_R1B011D88210 allows remote attackers to alter the ALG service. The CGI handler accepts a crafted POST request without enforcing authorization before applying attacker-controlled ALG service settings. No credentials or user interaction are required, and the documented consequence is limited to unauthorized ALG service changes.

The record

CVE
CVE-2024-57681
Published
Jan 16, 2025
Updated
Feb 3, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-863, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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