CVE-2022-34577Network attack vector

Arbitrary code execution via POST command injection

Published Jul 25, 2022 · Updated Aug 3, 2024

Command injection in WAVLINK WN535 G3 firmware M35G3R.V5030.180927 allows remote attackers to execute arbitrary code via a crafted POST request. The adm.cgi handler directly concatenates received POST data into a system function call, causing attacker-controlled input to execute as a command. Exploitation requires an active administrative session at the same time, and successful execution grants the router process's privileges.

CVSS severity9.8
Critical
EPSS probability2.42%
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 WAVLINK WN535 G3 firmware M35G3R.V5030.180927 allows remote attackers to execute arbitrary code via a crafted POST request. The adm.cgi handler directly concatenates received POST data into a system function call, causing attacker-controlled input to execute as a command. Exploitation requires an active administrative session at the same time, and successful execution grants the router process's privileges.

The record

CVE
CVE-2022-34577
Published
Jul 25, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 25, 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

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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