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TI-2019-08857 Aliases CVE-2019-11820GHSA-h7q5-jggm-p2vj

Insufficiently protected credentials in Synology Calendar

Priority LOW 25CWE-522Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-522.

Summary

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

Why it matters now

EPSS 0.00281 20th percentileScored 2026-11-07
Fix Fixed Calendar (Synology): 2.3.3-0620

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
SynologyCalendarbefore 2.3.3-06202.3.3-0620Patch availableCNA
  • Calendar VendorSynology Affected before 2.3.3-0620 Fixed in 2.3.3-0620 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:synology:calendar:*:*:*:*:*:*:*:*before 2.3.3-0620VulnerableSynology
  • cpe:2.3:a:synology:calendar:*:*:*:*:*:*:*:* Versions before 2.3.3-0620 Vulnerable ·Synology

Remediation

  • Fix · CNA Calendar (Synology) Fixed in 2.3.3-0620

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-11820
  2. 2026-10-03 Alias added: GHSA-h7q5-jggm-p2vj

References

Advisory 1

  • TI-2019-08865 OS command injection in Synology Calendar CVSS 3.1CRITICAL 9.8
  • TI-2022-06947 Cross-site request forgery in Synology Calendar CVSS 3.1HIGH 8.0
  • TI-2021-13806 Hard-coded credentials in Synology Calendar CVSS 3.1HIGH 7.5
  • TI-2018-09547 Path traversal in Synology Calendar CVSS 3.0MEDIUM 6.5
  • TI-2018-06465 Incorrect authorization in Synology Calendar CVSS 3.0MEDIUM 6.5
  • TI-2017-11638 Improper access control in Synology Calendar CVSS 3.0MEDIUM 6.5
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences