CVE-2022-38309Network attack vector

Memory corruption via unbounded virtual-server list parameter

Published Sep 7, 2022 · Updated Aug 3, 2024

Stack overflow in Tenda AC18 firmware 15.03.05.05 and 15.03.05.19 allows remote attackers to corrupt memory via a crafted request. The /goform/SetVirtualServerCfg handler accepts the untrusted list request-body parameter without enforcing an effective length limit, overflowing its stack; public sources do not identify the exact copy operation. No authentication or user interaction is required, but the public record does not establish whether exploitation yields code execution or only a process crash.

CVSS severity9.8
Critical
EPSS probability1.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in Tenda AC18 firmware 15.03.05.05 and 15.03.05.19 allows remote attackers to corrupt memory via a crafted request. The /goform/SetVirtualServerCfg handler accepts the untrusted list request-body parameter without enforcing an effective length limit, overflowing its stack; public sources do not identify the exact copy operation. No authentication or user interaction is required, but the public record does not establish whether exploitation yields code execution or only a process crash.

The record

CVE
CVE-2022-38309
Published
Sep 7, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, 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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
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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