CVE-2021-45916

Name: CVE-2021-45916
Creator: NVD / NIST
Published: 2022-01-03T10:15:08.327+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.5/10EPSS 0.30%

Last modified Jun 17, 2026

CVE-2021-45916 is a low-severity vulnerability rated 3.5/10 on the CVSS scale. 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.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

3.5/10

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

EPSS Probability

0.30%

21.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Smr	Shenwang Endpoint Protection Security System	< 7.20.0401

References

https://www.twcert.org.tw/tw/cp-132-5432-b9074-1.htmlThird Party Advisory
https://www.twcert.org.tw/tw/cp-132-5432-b9074-1.htmlThird Party Advisory

Timeline

Published: Jan 3, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-45916?

How severe is CVE-2021-45916?

CVE-2021-45916 has a CVSS score of 3.5/10 (LOW severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2021-45916?

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-2021-45916?

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

Scan your code now

Source: NVD / NIST