How severe is CVE-2018-15602?

CVE-2018-15602 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-15602 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15602?

CVE-2018-15602 affects Zyxel Vmg3312 B10b Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-15602?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-15602 published?

CVE-2018-15602 was published on 2018-08-26 and last updated on 2026-06-17.

CVE-2018-15602

CVE-2018-15602 is a medium-severity vulnerability in Zyxel Vmg3312 B10b Firmware with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Zyxel Vmg3312 B10b Firmware
Published: 2018-08-26
Last modified: 2026-06-17

Description

Zyxel VMG3312 B10B devices are affected by a persistent XSS vulnerability via the pages/connectionStatus/connectionStatus-hostEntry.cmd hostname parameter.

Frequently asked questions

What is CVE-2018-15602?: Zyxel VMG3312 B10B devices are affected by a persistent XSS vulnerability via the pages/connectionStatus/connectionStatus-hostEntry.cmd hostname parameter.
How severe is CVE-2018-15602?: CVE-2018-15602 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-15602 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15602?: CVE-2018-15602 affects Zyxel Vmg3312 B10b Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-15602?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-15602 published?: CVE-2018-15602 was published on 2018-08-26 and last updated on 2026-06-17.

References

https://gist.github.com/f4lcone/e786fa8fc2919c8ec6f90d8a7ba555ea

Affected products (1)

cpe:2.3:o:zyxel:vmg3312_b10b_firmware:-:*:*:*:*:*:*:*

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