CVE-2021-33180

Name: CVE-2021-33180
Creator: NVD / NIST
Published: 2021-06-01T14:15:10.073+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.99%

Last modified Jun 17, 2026

CVE-2021-33180 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 0.99% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.99%

58.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Synology	Media Server	< 1.8.1-2876

References

https://www.synology.com/security/advisory/Synology_SA_20_24Vendor Advisory
https://www.synology.com/security/advisory/Synology_SA_20_24Vendor Advisory

Timeline

Published: Jun 1, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-33180?

How severe is CVE-2021-33180?

CVE-2021-33180 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.99% probability of exploitation in the next 30 days.

How do I fix CVE-2021-33180?

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-2021-33180?

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

Scan your code now

Source: NVD / NIST