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CRITICAL

CVE-2018-20512

CVSS v3

9.8

CRITICAL

EPSS Score

1.8 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

EPON CPE-WiFi devices 2.0.4-X000 are vulnerable to escalation of privileges by sending cooLogin=1, cooUser=admin, and timestamp=-1 cookies.

Technical details

Published
2019-01-03

Frequently asked questions

What is CVE-2018-20512?

EPON CPE-WiFi devices 2.0.4-X000 are vulnerable to escalation of privileges by sending cooLogin=1, cooUser=admin, and timestamp=-1 cookies.

Is CVE-2018-20512 actively exploited?

Active exploitation of CVE-2018-20512 has not been confirmed. Its EPSS score was 1.8% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-20512?

CVE-2018-20512 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2018-20512 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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