CVE-2018-8927

Name: CVE-2018-8927
Creator: NVD / NIST
Published: 2018-06-14T14:29:00.403+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.91%

Last modified Jun 17, 2026

CVE-2018-8927 is a vulnerability of currently unknown severity. Improper authorization vulnerability in SYNO.Cal.Event in Calendar before 2.1.2-0511 allows remote authenticated users to create arbitrary events via the (1) cal_id or (2) original_cal_id parameter.. EPSS estimates a 0.91% chance of exploitation in the next 30 days.

Description

Improper authorization vulnerability in SYNO.Cal.Event in Calendar before 2.1.2-0511 allows remote authenticated users to create arbitrary events via the (1) cal_id or (2) original_cal_id parameter.

Metrics

EPSS Probability

0.91%

55.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Synology	Calendar	< 2.1.2-0511

References

https://www.synology.com/en-global/support/security/Synology_SA_18_16Vendor Advisory
https://www.synology.com/en-global/support/security/Synology_SA_18_16Vendor Advisory

Timeline

Published: Jun 14, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-8927?

Improper authorization vulnerability in SYNO.Cal.Event in Calendar before 2.1.2-0511 allows remote authenticated users to create arbitrary events via the (1) cal_id or (2) original_cal_id parameter.

How severe is CVE-2018-8927?

Severity scoring for CVE-2018-8927 is pending analysis. The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.

How do I fix CVE-2018-8927?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-8927?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST