CVE-2019-11820

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-05-09 · updated 2026-06-17
Weakness: CWE-522

Description

Information exposure through process environment vulnerability in Synology Calendar before 2.3.3-0620 allows local users to obtain credentials via cmdline.

Affected products

Synology Calendar: before 2.3.3-0620 — fixed in 2.3.3-0620

How to fix

Upgrade to a fixed version: Synology Calendar 2.3.3-0620. Check the vendor advisory for mitigations.

References

https://www.synology.com/security/advisory/Synology_SA_19_21
https://www.synology.com/security/advisory/Synology_SA_19_21

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