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HIGH

CVE-2019-10631

CVSS v3

8.8

HIGH

EPSS Score

2.2 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Shell Metacharacter Injection in the package installer on Zyxel NAS 326 version 5.21 and below allows an authenticated attacker to execute arbitrary code via multiple different requests.

Technical details

Published
2019-04-09

Frequently asked questions

What is CVE-2019-10631?

Shell Metacharacter Injection in the package installer on Zyxel NAS 326 version 5.21 and below allows an authenticated attacker to execute arbitrary code via multiple different requests.

Is CVE-2019-10631 actively exploited?

Active exploitation of CVE-2019-10631 has not been confirmed. Its EPSS score was 2.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-10631?

CVE-2019-10631 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2019-10631 affecting your environment?

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