How severe is CVE-2015-7251?

CVE-2015-7251 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2015-7251 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-7251?

CVE-2015-7251 affects Zte Zxhn H108n R1a Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-7251?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2015-7251 published?

CVE-2015-7251 was published on 2015-12-30 and last updated on 2026-06-17.

CVE-2015-7251

CVE-2015-7251 is a critical-severity vulnerability in Zte Zxhn H108n R1a Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 11% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-255.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 11% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-255
Affected product: Zte Zxhn H108n R1a Firmware
Published: 2015-12-30
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2015-7251?: CVE-2015-7251 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2015-7251 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-7251?: CVE-2015-7251 affects Zte Zxhn H108n R1a Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-7251?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2015-7251 published?: CVE-2015-7251 was published on 2015-12-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:zte:zxhn_h108n_r1a_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Zte Zxhn H108n R1a Firmware

CVE-2015-7250 — High (CVSS 7.5): Absolute path traversal vulnerability in cgi-bin/webproc on ZTE ZXHN H108N R1A devices before ZTE.bhs.ZXHNH108NR1A.k_PE…
CVE-2015-7248 — High (CVSS 7.5): ZTE ZXHN H108N R1A devices before ZTE.bhs.ZXHNH108NR1A.k_PE allow remote attackers to discover usernames and password…
CVE-2015-8703 — Medium (CVSS 6.5): ZTE ZXHN H108N R1A devices before ZTE.bhs.ZXHNH108NR1A.k_PE and ZXV10 W300 devices W300V1.0.0f_ER1_PE allow remote…
CVE-2015-7252 — Medium (CVSS 6.1): Cross-site scripting (XSS) vulnerability in cgi-bin/webproc on ZTE ZXHN H108N R1A devices before…
CVE-2015-7249 — Medium (CVSS 4.9): ZTE ZXHN H108N R1A devices before ZTE.bhs.ZXHNH108NR1A.k_PE allow remote authenticated users to bypass intended access…

All CVEs affecting Zte Zxhn H108n R1a Firmware →

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CVE-2015-7856 — Critical (CVSS 10.0): OpenNMS has a default password of rtc for the rtc account, which makes it easier for remote attackers to obtain access…
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CVE-2014-7233 — Critical (CVSS 10.0): GE Healthcare Precision THUNIS-800+ has a default password of (1) 1973 for the factory default System Utilities menu,…
CVE-2014-7232 — Critical (CVSS 10.0): GE Healthcare Discovery XR656 and XR656 G2 has a password of (1) 2getin for the insite user, (2) 4$xray for the xruser…

Browse all CWE-255 (Credentials Management Errors) vulnerabilities →