CRITICAL

CVE-2019-11829

CVSS v3

9.8

CRITICAL

EPSS Score

2.2 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2019-11829 yet.

Full record on NVD

Description

OS command injection vulnerability in drivers_syno_import_user.php in Synology Calendar before 2.3.1-0617 allows remote attackers to execute arbitrary commands via the crafted 'X-Real-IP' header.

Technical details

Published: 2019-06-30

Frequently asked questions

What is CVE-2019-11829?

OS command injection vulnerability in drivers_syno_import_user.php in Synology Calendar before 2.3.1-0617 allows remote attackers to execute arbitrary commands via the crafted 'X-Real-IP' header.

Is CVE-2019-11829 actively exploited?

Active exploitation of CVE-2019-11829 has not been confirmed. Its EPSS score was 2.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-11829?

CVE-2019-11829 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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