CVE-2025-6139
Published: 16 June 2025
Summary
CVE-2025-6139 is a low-severity Use of Hard-coded Password (CWE-259) vulnerability in Totolink T10 Firmware. Its CVSS base score is 1.1 (Low).
Operationally, ranked at the 28.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-18435
Vulnerability details
A vulnerability, which was classified as problematic, has been found in TOTOLINK T10 4.1.8cu.5207. Affected by this issue is some unknown functionality of the file /etc/shadow.sample. The manipulation leads to use of hard-coded password. The attack can only be initiated…
more
within the local network. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used.
- 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.
Changing default authenticators prior to first use directly prevents use of hard-coded passwords.
Shared threat data frequently highlights products or deployments still using hard-coded passwords, enabling remediation that directly blocks credential-based attacks.
Background checks and authorization requirements decrease the probability that a developer will hard-code passwords for later unauthorized access.
Reviews of supplier deliverables reduce the chance that hard-coded passwords are introduced into the system.