How severe is CVE-2018-9248?

CVE-2018-9248 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-2018-9248 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-9248?

CVE-2018-9248 affects Fiberhome Vdsl2 Modem Hg 150-ub Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-9248?

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-2018-9248 published?

CVE-2018-9248 was published on 2018-04-04 and last updated on 2026-06-17.

CVE-2018-9248

CVE-2018-9248 is a critical-severity vulnerability in Fiberhome Vdsl2 Modem Hg 150-ub Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 15% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 15% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Fiberhome Vdsl2 Modem Hg 150-ub Firmware
Published: 2018-04-04
Last modified: 2026-06-17

Description

FiberHome VDSL2 Modem HG 150-UB devices allow authentication bypass via a "Cookie: Name=0admin" header.

Frequently asked questions

What is CVE-2018-9248?: FiberHome VDSL2 Modem HG 150-UB devices allow authentication bypass via a "Cookie: Name=0admin" header.
How severe is CVE-2018-9248?: CVE-2018-9248 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-2018-9248 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-9248?: CVE-2018-9248 affects Fiberhome Vdsl2 Modem Hg 150-ub Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-9248?: 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-2018-9248 published?: CVE-2018-9248 was published on 2018-04-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:fiberhome:vdsl2_modem_hg_150-ub_firmware:-:*:*:*:*:*:*:*

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