CVE-2022-42058Network attack vector

Service crash via unchecked remoteIP stack copy

Published Nov 15, 2022 · Updated Apr 30, 2025

Stack-based buffer overflow in Tenda W15Ev2 firmware 15.11.0.10(1576) allows remote attackers to crash the router via crafted input. The setRemoteWebManage path passes the unvalidated remoteIP POST value through advance_set_wan_access_cfg into a 256-byte stack buffer without checking its length. The request is reachable through the local web interface and through the hosted remote-management tunnel when that non-default feature is enabled, and an overlong value crashes and reboots the device.

CVSS severity9.8
Critical
EPSS probability1.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Tenda W15Ev2 firmware 15.11.0.10(1576) allows remote attackers to crash the router via crafted input. The setRemoteWebManage path passes the unvalidated remoteIP POST value through advance_set_wan_access_cfg into a 256-byte stack buffer without checking its length. The request is reachable through the local web interface and through the hosted remote-management tunnel when that non-default feature is enabled, and an overlong value crashes and reboots the device.

The record

CVE
CVE-2022-42058
Published
Nov 15, 2022
Updated
Apr 30, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 30, 2025Record 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

5.3Boschko Security LabsCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-787Out-of-bounds Write
T1499Endpoint Denial of Service

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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