Auth bypass in ZTE Mf258k
CVE-2025-66315
There is a configuration defect vulnerability in the version server of ZTE MF258K Pro products. Due to improper directory permission settings, an attacker can execute write permissions in a specific directory.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.003 (15.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.000
Affected products
- ZTE Mf258k — versions ZTE_MF258kPRO_PLAY_V1.0.0B03, ZTE_MF258PRO_STD_V1.0.0B04
- ZTE Mf258k Pro
- ZTE Mf258k Pro Firmware — versions zte_mf258kpro_play_v1.0.0b03, zte_mf258pro_std_v1.0.0b04
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-66315?
- CVE-2025-66315 is a medium-severity vulnerability in ZTE Mf258k, classified under Improper Privilege Management. CVSS score: 4.3/10. Published 2026-01-09.
- How severe is CVE-2025-66315?
- Medium severity. CVSS v3 base score is 4.3 out of 10.