CVE-2026-1610Public exploitNetwork attack vector

Root access via deterministic Telnet password

Published Jan 29, 2026 · Updated Jan 29, 2026

Authentication bypass in Tenda AX12 Pro V2 firmware 16.03.49.24_cn allows remote attackers to obtain root access via Telnet. The Telnet initialization logic derives the root password from the device MAC address and a firmware-embedded static string, then Base64-encodes the combination. Telnet must be reachable over the local network or an exposed WAN interface; successful use grants UID 0 control of the router and its traffic.

CVSS severity8.1
High
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Tenda AX12 Pro V2 firmware 16.03.49.24_cn allows remote attackers to obtain root access via Telnet. The Telnet initialization logic derives the root password from the device MAC address and a firmware-embedded static string, then Base64-encodes the combination. Telnet must be reachable over the local network or an exposed WAN interface; successful use grants UID 0 control of the router and its traffic.

The record

CVE
CVE-2026-1610
Published
Jan 29, 2026
Updated
Jan 29, 2026
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AX12 Pro V2 Firmware
Classifications
CWE-798, CWE-259, T1078.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 29, 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=16.03.49.24_cn

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AX12 Pro V2 Firmwareversion=16.03.49.24_cn

Published CVSS scores

8.1VulDB CNACVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.6VulDB CNAAV:N/AC:H/Au:N/C:C/I:C/A:C
8.2VulDB CNACVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.1NIST NVDCVSS:3.1/AV:N/AC:H/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 exploitPublished

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
CWE-259Use of Hard-coded Password
T1078.003Valid Accounts: Local Accounts

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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