What is CVE-2015-7251?

CVE-2015-7251 is a critical-severity vulnerability in ZTE Zxhn H108n R1a, classified under CWE-255. CVSS score: 9.8/10. Published 2015-12-30.

How severe is CVE-2015-7251?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in ZTE Zxhn H108n R1a

CVE-2015-7251

ZTE ZXHN H108N R1A devices before ZTE.bhs.ZXHNH108NR1A.k_PE have a hardcoded password of root for the root account, which allows remote attackers to obtain administrative access via a TELNET session.

Published 2015-12-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.107 (95.7th percentile), scored 2026-09-30.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.107 · newest: 0.107 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-255

References

www.securityfocus.com/bid/77421 (vdb-entry)
www.kb.cert.org/vuls/id/BLUU-9ZDJWA (US Government Resource, Third Party Advisory)
www.kb.cert.org/vuls/id/391604 (US Government Resource, Third Party Advisory, third-party-advisory)
www.exploit-db.com/exploits/38773/ (exploit)

Frequently asked questions

What is CVE-2015-7251?: CVE-2015-7251 is a critical-severity vulnerability in ZTE Zxhn H108n R1a, classified under CWE-255. CVSS score: 9.8/10. Published 2015-12-30.
How severe is CVE-2015-7251?: Critical severity. CVSS v3 base score is 9.8 out of 10.