CVE-2026-1610
Published: 29 January 2026
Summary
CVE-2026-1610 is a high-severity Use of Hard-coded Password (CWE-259) vulnerability in Tenda Ax12 Pro Firmware. Its CVSS base score is 8.1 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique External Remote Services (T1133); ranked at the 13.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 IA-5 (Authenticator Management) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
IA-5 prohibits the use of hard-coded authenticators, directly addressing the CWE-259 and CWE-798 hard-coded credentials vulnerability in the Telnet service.
SI-2 requires timely identification, reporting, and remediation of flaws like hard-coded credentials in vulnerable firmware versions.
CM-7 mandates implementing only essential system capabilities, allowing prohibition of unnecessary Telnet service to mitigate remote exploitation risk.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Hard-coded credentials in exposed Telnet service directly enable unauthenticated remote access via external services and default/known accounts.
NVD Description
A vulnerability was found in Tenda AX12 Pro V2 16.03.49.24_cn. Affected by this issue is some unknown functionality of the component Telnet Service. Performing a manipulation results in hard-coded credentials. The attack is possible to be carried out remotely. A…
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high degree of complexity is needed for the attack. The exploitation is known to be difficult. The exploit has been made public and could be used.
Deeper analysisAI
CVE-2026-1610 is a vulnerability involving hard-coded credentials in the Telnet Service of Tenda AX12 Pro V2 running firmware version 16.03.49.24_cn. The issue affects an unknown functionality within this component, classified under CWE-259 (Use of Hard-coded Password) and CWE-798 (Use of Hard-coded Credentials). It carries a CVSS v3.1 base score of 8.1 (High), reflecting network accessibility (AV:N), high attack complexity (AC:H), no privileges required (PR:N), no user interaction (UI:N), unchanged scope (S:U), and high impacts on confidentiality, integrity, and availability (C:H/I:H/A:H). The vulnerability was published on 2026-01-29.
Attackers can exploit this remotely by manipulating the Telnet Service using the hard-coded credentials, though it requires a high degree of complexity and is known to be difficult to execute. No authentication or user interaction is needed, allowing unauthenticated remote actors to potentially gain high-level access. Successful exploitation could result in unauthorized disclosure of sensitive data, modification of system resources, and disruption of service availability.
Advisories and details are documented on VulDB (ctiid.343378, id.343378, submit.740766) and a GitHub issue at QIU-DIE/CVE/issues/49, with the vendor site at tenda.com.cn potentially providing further guidance. No specific patches or mitigations are detailed in the available information.
The exploit has been made public and could be used, increasing the risk for exposed Tenda AX12 Pro V2 devices on the specified firmware.
Details
- CWE(s)