How severe is CVE-2021-45916?

CVE-2021-45916 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2021-45916 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45916?

CVE-2021-45916 affects Smr Shenwang Endpoint Protection Security System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45916?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-45916 published?

CVE-2021-45916 was published on 2022-01-03 and last updated on 2026-06-17.

CVE-2021-45916

CVE-2021-45916 is a low-severity vulnerability in Smr Shenwang Endpoint Protection Security System with a CVSS 3.x base score of 3.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v2: 2.7
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Smr Shenwang Endpoint Protection Security System
Published: 2022-01-03
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-45916?: 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.
How severe is CVE-2021-45916?: CVE-2021-45916 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2021-45916 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45916?: CVE-2021-45916 affects Smr Shenwang Endpoint Protection Security System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45916?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-45916 published?: CVE-2021-45916 was published on 2022-01-03 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:smr:shenwang_endpoint_protection_security_system:*:*:*:*:*:*:*:*

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