CVE-2025-53558
Published: 31 July 2025
Summary
CVE-2025-53558 is a high-severity Use of Weak Credentials (CWE-1391) vulnerability in Jvn (inferred from references). Its CVSS base score is 8.7 (High).
Operationally, ranked in the top 4.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2025-53558 is a use of weak credentials vulnerability (CWE-1391) affecting the ZXHN-F660T and ZXHN-F660A routers supplied by ZTE Japan K.K. These devices ship with a single shared credential used across all installations, allowing authentication to the administrative interface without unique per-device secrets.
An attacker who obtains the common credential can log in over an adjacent network with no prior authentication required. Successful exploitation grants full control over the device, resulting in high impact to confidentiality, integrity, and availability as reflected in the CVSS 4.0 score of 8.7.
The Japan Vulnerability Notes advisory at https://jvn.jp/en/jp/JVN66546573/ documents the issue. The current EPSS score of 0.2258 indicates notable exploitation interest, though the value has remained stable at its observed peak.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-23239
Vulnerability details
ZXHN-F660T and ZXHN-F660A provided by ZTE Japan K.K. use a common credential for all installations. With the knowledge of the credential, an attacker may log in to the affected devices.
- 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.