CVE-2022-43028Network attack vector

Service interruption via timeZone stack overflow

Published Oct 19, 2022 · Updated May 8, 2025

Stack overflow in Tenda TX3 firmware 16.03.13.11 allows attackers to interrupt router service via a crafted timeZone parameter. The /goform/SetSysTimeCfg handler processes the timeZone value in a stack buffer without preventing an oversized input, causing memory corruption. Exploitation requires access to the router's web interface; published records do not establish authentication requirements or demonstrate impacts beyond the resulting service interruption.

CVSS severity9.8
Critical
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Stack overflow in Tenda TX3 firmware 16.03.13.11 allows attackers to interrupt router service via a crafted timeZone parameter. The /goform/SetSysTimeCfg handler processes the timeZone value in a stack buffer without preventing an oversized input, causing memory corruption. Exploitation requires access to the router's web interface; published records do not establish authentication requirements or demonstrate impacts beyond the resulting service interruption.

The record

CVE
CVE-2022-43028
Published
Oct 19, 2022
Updated
May 8, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 19, 2022CVE publishedPublication date reported by the CVE source.
  2. May 8, 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

9.8[email protected]CVSS: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-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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