CVE-2026-1329Public exploitNetwork attack vector

Authenticated device compromise via guest Wi-Fi overflow

Published Jan 22, 2026 · Updated Jan 22, 2026

Stack-based buffer overflow in Tenda AX1803 1.0.0.1 allows remote authenticated users to execute code via crafted guest Wi-Fi settings. The fromGetWifiGuestBasic function at /goform/WifiGuestSet fails to constrain guestWrlPwd, guestEn, guestSsid, hideSsid, or guestSecurity input before placing it in a stack buffer. A low-privileged management session is required; successful exploitation compromises confidentiality, integrity, and availability on the router.

CVSS severity8.8
High
EPSS probability1.15%
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-based buffer overflow in Tenda AX1803 1.0.0.1 allows remote authenticated users to execute code via crafted guest Wi-Fi settings. The fromGetWifiGuestBasic function at /goform/WifiGuestSet fails to constrain guestWrlPwd, guestEn, guestSsid, hideSsid, or guestSecurity input before placing it in a stack buffer. A low-privileged management session is required; successful exploitation compromises confidentiality, integrity, and availability on the router.

The record

CVE
CVE-2026-1329
Published
Jan 22, 2026
Updated
Jan 22, 2026
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AX1803
Classifications
CWE-119, CWE-121, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AX1803version=1.0.0.1

Published CVSS scores

7.4VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

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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