CVE-2019-11820
Information exposure through process environment vulnerability in Synology Calendar before 2.3.3...
Information exposure through process environment vulnerability in Synology Calendar before 2.3.3-0620 allows local users to obtain credentials via cmdline.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Information exposure through process environment vulnerability in Synology Calendar before 2.3.3-0620 allows local users to obtain credentials via cmdline.
- Record
CVE-2019-11820- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N - Weakness
- CWE-522
- Updated
- 2026-11-02
EUVDEUVD-2019-3486
Information exposure through process environment vulnerability in Synology Calendar before 2.3.3-0620 allows local users to obtain credentials via cmdline.
- Record
EUVD-2019-3486- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h7q5-jggm-p2vj No score
Information exposure through process environment vulnerability in Synology Calendar before 2.3.3...
Information exposure through process environment vulnerability in Synology Calendar before 2.3.3-0620 allows local users to obtain credentials via cmdline.
- Record
GHSA-h7q5-jggm-p2vj- Weakness
- CWE-522
- Updated
- 2026-11-02
NVD
Information exposure through process environment vulnerability in Synology Calendar before 2.3.3-0620 allows local users to obtain credentials via cmdline.
- Record
CVE-2019-11820- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N - CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-522
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-11820 is a medium vulnerability (CVSS 5.5) in Humhub Calendar, published May 9, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.28%, the 20th percentile. No source names a fixed version.