CVE-2019-11829

9.8 criticalEPSS 2.2%

Critical (9.8) in synology calendar. EPSS 2.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 2.2% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-31)
CWE: CWE-78
Published: 2019-06-30
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

synology:calendar

References

https://www.synology.com/security/advisory/Synology_SA_19_12
https://www.synology.com/security/advisory/Synology_SA_19_12

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