How severe is CVE-2018-6312?

CVE-2018-6312 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-6312 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6312?

CVE-2018-6312 affects Foxconn Ap-fc4064-t Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-6312?

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

When was CVE-2018-6312 published?

CVE-2018-6312 was published on 2018-03-10 and last updated on 2026-06-17.

CVE-2018-6312

CVE-2018-6312 is a high-severity vulnerability in Foxconn Ap-fc4064-t Firmware with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-521.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 9.0
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-521
Affected product: Foxconn Ap-fc4064-t Firmware
Published: 2018-03-10
Last modified: 2026-06-17

Description

A privileged account with a weak default password on the Foxconn femtocell FEMTO AP-FC4064-T version AP_GT_B38_5.8.3lb15-W47 LTE Build 15 can be used to turn on the TELNET service via the web interface, which allows root login without any password. This vulnerability will lead to full system compromise and disclosure of user communications. The foxconn account with an 8-character lowercase alphabetic password can be used.

Frequently asked questions

What is CVE-2018-6312?: A privileged account with a weak default password on the Foxconn femtocell FEMTO AP-FC4064-T version AP_GT_B38_5.8.3lb15-W47 LTE Build 15 can be used to turn on the TELNET service via the web interface, which allows root login without any password. This vulnerability will lead to full system compromise and disclosure of user communications. The foxconn account with an 8-character lowercase alphabetic password can be used.
How severe is CVE-2018-6312?: CVE-2018-6312 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-6312 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6312?: CVE-2018-6312 affects Foxconn Ap-fc4064-t Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-6312?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-6312 published?: CVE-2018-6312 was published on 2018-03-10 and last updated on 2026-06-17.

References

https://gist.github.com/DrmnSamoLiu/cd1d6fa59501f161616686296aa4a6c8

Affected products (1)

cpe:2.3:o:foxconn:ap-fc4064-t_firmware:ap_gt_b38_5.8.3lb15-w47_lte:*:*:*:*:*:*:*

More vulnerabilities in Foxconn Ap-fc4064-t Firmware

CVE-2018-9112 — Critical (CVSS 9.8): A low privileged admin account with a weak default password of admin exists on the Foxconn FEMTO AP-FC4064-T…
CVE-2018-6311 — Medium (CVSS 6.8): One can gain root access on the Foxconn femtocell FEMTO AP-FC4064-T version AP_GT_B38_5.8.3lb15-W47 LTE Build 15 via…
CVE-2018-9111 — Medium (CVSS 5.4): Cross Site Scripting (XSS) exists on the Foxconn FEMTO AP-FC4064-T AP_GT_B38_5.8.3lb15-W47 LTE Build 15 via the…

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