CVE-2021-34812

7.5 highEPSS 1.1%

High (7.5) in synology calendar. EPSS 1.1% chance of exploitation in the next 30 days.

Use of hard-coded credentials vulnerability in php component in Synology Calendar before 2.4.0-0761 allows remote attackers to obtain sensitive information via unspecified vectors.

Severity

CVSS 3.1

7.5 high

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

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
CWE: CWE-798
Published: 2021-06-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

synology:calendar

References

https://www.synology.com/security/advisory/Synology_SA_21_12
https://www.synology.com/security/advisory/Synology_SA_21_12

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