CVE-2021-45916: SUN & MOON RISE CO., LTD. Shockwall - Improper Input Validation

Severity: low (CVSS 3.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-01-03 · updated 2026-06-17
Weakness: CWE-20

Description

The programming function of Shockwall system has an improper input validation vulnerability. An authenticated attacker within the local area network can send malicious response to the server to disrupt the service partially.

Affected products

Smr Shenwang Endpoint Protection Security System: before 7.20.0401 — fixed in 7.20.0401

How to fix

Upgrade to a fixed version: Smr Shenwang Endpoint Protection Security System 7.20.0401. Check the vendor advisory for mitigations.

References

https://www.twcert.org.tw/tw/cp-132-5432-b9074-1.html
https://www.twcert.org.tw/tw/cp-132-5432-b9074-1.html

Get alerted when CVE-2021-45916 or the next vulnerability affects your stack