CVE-2021-33180

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-06-01 · updated 2026-06-17
Weakness: CWE-89

Description

Improper neutralization of special elements used in an SQL command ('SQL Injection') vulnerability in cgi component in Synology Media Server before 1.8.1-2876 allows remote attackers to execute arbitrary SQL commands via unspecified vectors.

Affected products

Synology Media Server: before 1.8.1-2876 — fixed in 1.8.1-2876

How to fix

Upgrade to a fixed version: Synology Media Server 1.8.1-2876. Check the vendor advisory for mitigations.

References

https://www.synology.com/security/advisory/Synology_SA_20_24
https://www.synology.com/security/advisory/Synology_SA_20_24

Get alerted when CVE-2021-33180 or the next vulnerability affects your stack