CVE-2025-29521
Published: 25 August 2025
Summary
CVE-2025-29521 is a medium-severity Use of Default Credentials (CWE-1392) vulnerability in Dlink Dsl-7740C Firmware. Its CVSS base score is 5.3 (Medium).
Operationally, ranked in the top 47.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-27746
Vulnerability details
Insecure default credentials for the Adminsitrator account of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 allows attackers to escalate privileges via a bruteforce attack.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Mandates replacement of default credentials during secure configuration and provisioning procedures.
Policy requires changing or avoiding default credentials during system setup and operation.
Unique identification requirement prevents use of default or shared credentials by organizational users.
Changing default authenticators prior to first use prevents use of default credentials.
Standards-compliant authentication mechanisms typically prohibit default credentials for cryptographic modules.
Consistent implementation of the strategy drives removal or mitigation of default credentials in procured systems and services.
Security functional requirements and acceptance criteria can stipulate that acquired systems must not use default credentials.
Documentation of known configuration vulnerabilities and secure setup practices reduces reliance on default credentials.