CVE-2022-36585Network attack vector

Unauthenticated memory corruption via DHCP rule parsing

Published Sep 7, 2022 · Updated Aug 3, 2024

A buffer overflow in Tenda G3 firmware 15.11.0.6(7663) allows remote attackers to corrupt httpd memory through network-supplied DHCP rule data. The public record identifies sscanf in addDhcpRule as the overflowing operation but does not disclose the affected parameter or destination buffer. Unauthenticated network access is sufficient; the record does not establish whether the corruption produces a crash or code execution.

CVSS severity9.8
Critical
EPSS probability0.92%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A buffer overflow in Tenda G3 firmware 15.11.0.6(7663) allows remote attackers to corrupt httpd memory through network-supplied DHCP rule data. The public record identifies sscanf in addDhcpRule as the overflowing operation but does not disclose the affected parameter or destination buffer. Unauthenticated network access is sufficient; the record does not establish whether the corruption produces a crash or code execution.

The record

CVE
CVE-2022-36585
Published
Sep 7, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 7, 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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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