CVE-2022-37130Public exploitNetwork attack vector

Unauthenticated OS command execution via setnum injection

Published Aug 31, 2022 · Updated Aug 3, 2024

Command injection in D-Link DIR-816 A2 1.10CNB04 and DIR-878 1.30B08 allows remote attackers to execute arbitrary OS commands. The /goform/Diagnosis handler passes a command string built with snprintf from the setnum request value to system without neutralizing shell metacharacters. The published proof of concept obtains a tokenid from the login page and injects a reboot command, demonstrating command execution with the router service's privileges.

CVSS severity9.8
Critical
EPSS probability26.33%
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 DIR-816 A2 1.10CNB04 and DIR-878 1.30B08 allows remote attackers to execute arbitrary OS commands. The /goform/Diagnosis handler passes a command string built with snprintf from the setnum request value to system without neutralizing shell metacharacters. The published proof of concept obtains a tokenid from the login page and injects a reboot command, demonstrating command execution with the router service's privileges.

The record

CVE
CVE-2022-37130
Published
Aug 31, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 31, 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

9.8NIST NVDCVSS: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 exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

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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