CVE-2022-35619Public exploitNetwork attack vector

Unauthenticated command execution via environment variable injection

Published Aug 3, 2022 · Updated Aug 3, 2024

OS command injection in D-Link DIR-818LW A1 firmware 1.05B01 allows remote attackers to execute arbitrary commands through ssdpcgi. The ssdpcgi_main function reads attacker-controlled environment variables, builds a shell command with sprintf, and passes it to system without neutralizing shell metacharacters. The interface requires no authentication or user interaction, and injected commands can take full control of the router.

CVSS severity9.8
Critical
EPSS probability2.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in D-Link DIR-818LW A1 firmware 1.05B01 allows remote attackers to execute arbitrary commands through ssdpcgi. The ssdpcgi_main function reads attacker-controlled environment variables, builds a shell command with sprintf, and passes it to system without neutralizing shell metacharacters. The interface requires no authentication or user interaction, and injected commands can take full control of the router.

The record

CVE
CVE-2022-35619
Published
Aug 3, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1190, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 3, 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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1190Exploit Public-Facing Application
T1059.004Unix 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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