CVE-2022-45655Public exploitNetwork attack vector

Service interruption via unchecked timeZone buffer copy

Published Dec 2, 2022 · Updated Apr 24, 2025

Buffer overflow in Tenda AC6 V1.0 firmware 15.03.05.19 allows remote attackers to interrupt router service via a crafted timeZone value. The httpd form_fast_setting_wifi_set handler copies the oversized timeZone parameter into a fixed-size buffer without checking its length. Network access is sufficient and no user interaction is required; the demonstrated consequence is limited to service interruption, with no published confidentiality or integrity impact.

CVSS severity7.5
High
EPSS probability0.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Tenda AC6 V1.0 firmware 15.03.05.19 allows remote attackers to interrupt router service via a crafted timeZone value. The httpd form_fast_setting_wifi_set handler copies the oversized timeZone parameter into a fixed-size buffer without checking its length. Network access is sufficient and no user interaction is required; the demonstrated consequence is limited to service interruption, with no published confidentiality or integrity impact.

The record

CVE
CVE-2022-45655
Published
Dec 2, 2022
Updated
Apr 24, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 2, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 24, 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

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499Endpoint Denial of Service

Public exploit references

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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