CVE-2025-25428
Exposed Creds in Trendnet Tew-929Dru Firmware 1.0.0.10
Raw vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSummary
CVE-2025-25428 is a high-severity Use of Hard-coded Password (CWE-259) vulnerability in Trendnet Tew-929Dru Firmware. Its CVSS base score is 8.0 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Valid Accounts (T1078); ranked at the 28th 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-2025-25428 is a hardcoded password vulnerability in the TRENDnet TEW-929DRU router running firmware version 1.0.0.10. The flaw exists in the /etc/shadow file, which contains a static password that permits unauthorized root login. This issue, classified under CWE-259 (Use of Hard-coded Password), was published on 2025-02-28 and carries a CVSS v3.1 base score of 8.0 (AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating high severity due to its potential for complete device compromise.
Attackers with adjacent network access (AV:A) and low privileges (PR:L), such as limited user access, can exploit this vulnerability with low complexity and no user interaction required. Upon successful authentication using the hardcoded password, attackers gain root privileges, enabling high-impact confidentiality breaches (e.g., data exfiltration), integrity violations (e.g., configuration changes), and availability disruptions (e.g., denial of service), effectively providing full control over the affected router.
Mitigation details are available in the referenced advisory at https://instinctive-acapella-fc7.notion.site/Trendnet-TEW-929DRU-Hardcoded-password-17815d9d4d2680d5a2becf32425d93fd, which documents the hardcoded password discovery in the TRENDnet TEW-929DRU.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-5927
Vulnerability Data
TRENDnet TEW-929DRU 1.0.0.10 was discovered to contain a hardcoded password vulnerability in /etc/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.