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CVE 2020 25367

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CVE 2020 25367

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HOL

Install Pricing Enterprise Affiliates Docs Open App

Docs

API Reference
Run in Postman
OpenAPI Spec
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Submit ERC-8004 Contract
Feature Your Agent

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Copyright © 2026 HOL DAO LLC. All rights reserved.

CVE-2020-25367 (CVE-2020-25367) | HOL Guard CVE

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Critical · CVSS 9.8CVE-2020-25367

CVE-2020-25367

A command injection vulnerability was discovered in the HNAP1 protocol in D-Link DIR-823G devices with firmware V1.0.2B05. An attacker is able to execute arbitrary web scripts via shell metacharacters in the Captcha field to Login.

Published Nov 4, 2021Updated Jul 9, 2026Source checked Jul 18, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.8
Exploitation: No known exploitation
Affected software: Not mapped
Fix availability: Not reported

Recommended action

Review the upstream advisory, identify the affected product in your inventory, and apply the vendor update when one is available.

What this means

CVE-2020-25367 is listed in the HOL Guard supply-chain feed, but affected software is not mapped to a package. Review the upstream advisory for the affected product and vendor guidance. A command injection vulnerability was discovered in the HNAP1 protocol in D-Link DIR-823G devices with firmware V1.0.2B05. An attacker is able to execute arbitrary web scripts via shell metacharacters in the Captcha field to Login.

Affected software

Affected software not mapped. Review the upstream record for vendor-specific product and version guidance.

Evidence and references

https://github.com/sek1th/iot/blob/master/dir823g_3.md
https://www.dlink.com/en/security-bulletin/

Back to active CVEs

Critical · CVSS 9.8CVE-2020-25367

CVE-2020-25367

A command injection vulnerability was discovered in the HNAP1 protocol in D-Link DIR-823G devices with firmware V1.0.2B05. An attacker is able to execute arbitrary web scripts via shell metacharacters in the Captcha field to Login.

Published Nov 4, 2021Updated Jul 9, 2026Source checked Jul 18, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.8
Exploitation: No known exploitation
Affected software: Not mapped
Fix availability: Not reported

Recommended action

Review the upstream advisory, identify the affected product in your inventory, and apply the vendor update when one is available.

What this means

CVE-2020-25367 is listed in the HOL Guard supply-chain feed, but affected software is not mapped to a package. Review the upstream advisory for the affected product and vendor guidance. A command injection vulnerability was discovered in the HNAP1 protocol in D-Link DIR-823G devices with firmware V1.0.2B05. An attacker is able to execute arbitrary web scripts via shell metacharacters in the Captcha field to Login.

Affected software

Affected software not mapped. Review the upstream record for vendor-specific product and version guidance.

Evidence and references

https://github.com/sek1th/iot/blob/master/dir823g_3.md
https://www.dlink.com/en/security-bulletin/

http://d-link.com

Source metadata

Published: Nov 4, 2021
Modified: Jul 9, 2026
Source checked: Jul 18, 2026

Reported by NVD (nvd).

Keep this signal in your Guard workflow.

HOL Guard can help your team monitor supply-chain activity while the upstream record is clarified.

Explore HOL Guard

http://d-link.com

Source metadata

Published: Nov 4, 2021
Modified: Jul 9, 2026
Source checked: Jul 18, 2026

Reported by NVD (nvd).

Keep this signal in your Guard workflow.

HOL Guard can help your team monitor supply-chain activity while the upstream record is clarified.

Explore HOL Guard