CVE-2022-36523Network attack vector

Unauthenticated command execution via GENA service parameter

Published Aug 15, 2022 · Updated Aug 3, 2024

Command injection in D-Link GO-RT-AC750 101b03 and 200b02 allows remote attackers to execute commands via GENA requests. The GENA subscription path passes the attacker-controlled service value through /htdocs/upnpinc/gena.php into a generated shell file without neutralizing command syntax. A network-reachable UPnP GENA service and a crafted unauthenticated SUBSCRIBE request are sufficient to run commands with the router service's privileges.

CVSS severity9.8
Critical
EPSS probability2.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in D-Link GO-RT-AC750 101b03 and 200b02 allows remote attackers to execute commands via GENA requests. The GENA subscription path passes the attacker-controlled service value through /htdocs/upnpinc/gena.php into a generated shell file without neutralizing command syntax. A network-reachable UPnP GENA service and a crafted unauthenticated SUBSCRIBE request are sufficient to run commands with the router service's privileges.

The record

CVE
CVE-2022-36523
Published
Aug 15, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

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

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

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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