Raw vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSummary
CVE-2025-70798 is a high-severity Use of Hard-coded Password (CWE-259) vulnerability in Tenda I24 Firmware. Its CVSS base score is 8.4 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Valid Accounts (T1078); ranked at the 8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified map to IA-5 (Authenticator Management) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2025-70798 is a hardcoded password vulnerability (CWE-259) in the Tenda i24V3.0si V3.0.0.5 firmware, specifically within the /etc_ro/shadow file. This flaw enables attackers to authenticate as the root user using a static credential, granting unrestricted administrative access to the device. The vulnerability carries a CVSS v3.1 base score of 8.4 (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), reflecting high impact due to complete compromise potential despite requiring local access.
An attacker with local access to the device, such as through physical proximity or prior network compromise, can exploit this vulnerability with low complexity and no privileges or user interaction required. Successful exploitation allows full root-level control, enabling actions like data exfiltration, firmware modification, persistent backdoor installation, or denial-of-service disruptions.
Advisories reference a detailed report at https://github.com/vuln-1/vuln/blob/main/Tenda/i24V3.0si_V3.0.0.5/report-1.md (duplicated in listings) and the vendor site at https://www.tendacn.com/, though specific patch details or mitigation steps are not outlined in available CVE data. Security practitioners should isolate affected devices and monitor for firmware updates from Tenda.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-208538
Vulnerability Data
Tenda i24V3.0si V3.0.0.5 Firmware V3.0.0.5 was discovered to contain a hardcoded password vulnerability in /etc_ro/shadow, which allows attackers to log in as root.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Authenticator management requires secure distribution, rotation, and verification of credentials, directly stopping hard-coded passwords from being introduced or used.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure SDLC practices directly prohibit embedding credentials in source code or binaries.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Requiring users to change temporary or default passwords at first use stops the continued existence of hard-coded or guessable passwords that are shipped with the product.