Which products and versions are affected by CVE-2015-6018?

Affected: Pmg5318-B20a Firmware (Zyxel). The full list is in the CVE brief.

Is CVE-2015-6018 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2015-6018 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2015-6018?

Public exploit code is available.

Is there a fix for CVE-2015-6018?

Fixed versions are available, including Pmg5318-B20a Firmware v100aanc0b5.

How urgently should CVE-2015-6018 be patched?

Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

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WatchlistCritical

CVE-2015-6018Pmg5318-B20a Firmware Vulnerability

The diagnostic-ping implementation on ZyXEL PMG5318-B20A devices with firmware before 1.00(AANC.2)C0 allows remote attackers to execute arbitrary commands via the PingIPAddr parameter.

Published Dec 31, 2015 · Updated May 6, 2026

Key Facts

Patch immediately

CVE-2015-6018 is a critical-severity vulnerability (CVSS 9.8 v3) affecting Pmg5318-B20a Firmware (Zyxel).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 21% probability of exploitation in the next 30 days.
Fixed versions are available, including Pmg5318-B20a Firmware v100aanc0b5.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Scores

CVSS v3

9.8

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

21%

Higher than 97.5% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

49/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Description

The diagnostic-ping implementation on ZyXEL PMG5318-B20A devices with firmware before 1.00(AANC.2)C0 allows remote attackers to execute arbitrary commands via the PingIPAddr parameter.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
Pmg5318-B20a FirmwareZyxel	See advisory	v100aanc0b5

Patched Releases

Pmg5318-B20a Firmware

v100aanc0b5

Timeline

Publicly disclosed
Dec 31, 2015
Last updated
May 6, 2026

Weakness Type

CWE-264

References

FAQ

Common Questions.

The diagnostic-ping implementation on ZyXEL PMG5318-B20A devices with firmware before 1.00(AANC.2)C0 allows remote attackers to execute arbitrary commands via the PingIPAddr parameter.
Affected: Pmg5318-B20a Firmware (Zyxel). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Pmg5318-B20a Firmware v100aanc0b5.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Is CVE-2015-6018 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.