How severe is CVE-2022-46306?

CVE-2022-46306 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-46306 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-46306?

CVE-2022-46306 affects Changingtec Servisign. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-46306?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-46306 published?

CVE-2022-46306 was published on 2023-01-03 and last updated on 2026-06-17.

CVE-2022-46306

CVE-2022-46306 is a high-severity vulnerability in Changingtec Servisign with a CVSS 3.x base score of 8.8. 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-22.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Changingtec Servisign
Published: 2023-01-03
Last modified: 2026-06-17

Description

ChangingTec ServiSign component has a path traversal vulnerability due to insufficient filtering for special characters in the DLL file path. An unauthenticated remote attacker can host a malicious website for the component user to access, which triggers the component to load malicious DLL files under arbitrary file path and allows the attacker to perform arbitrary system operation and disrupt of service.

Frequently asked questions

What is CVE-2022-46306?: ChangingTec ServiSign component has a path traversal vulnerability due to insufficient filtering for special characters in the DLL file path. An unauthenticated remote attacker can host a malicious website for the component user to access, which triggers the component to load malicious DLL files under arbitrary file path and allows the attacker to perform arbitrary system operation and disrupt of service.
How severe is CVE-2022-46306?: CVE-2022-46306 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-46306 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-46306?: CVE-2022-46306 affects Changingtec Servisign. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-46306?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-46306 published?: CVE-2022-46306 was published on 2023-01-03 and last updated on 2026-06-17.

References

https://www.twcert.org.tw/tw/cp-132-6802-4341b-1.html

Affected products (1)

cpe:2.3:a:changingtec:servisign:-:*:*:*:*:*:*:*

More vulnerabilities in Changingtec Servisign

CVE-2022-46304 — High (CVSS 8.8): ChangingTec ServiSign component has insufficient filtering for special characters in the connection response parameter.…
CVE-2020-3927 — High (CVSS 8.3): An arbitrary-file-access vulnerability exists in ServiSign security plugin, as long as the attackers learn the specific…
CVE-2020-3925 — High (CVSS 8.3): A Remote Code Execution(RCE) vulnerability exists in some designated applications in ServiSign security plugin, as long…
CVE-2022-46305 — Medium (CVSS 6.5): ChangingTec ServiSign component has a path traversal vulnerability. An unauthenticated LAN attacker can exploit this…
CVE-2020-3926 — Medium (CVSS 6.1): An arbitrary-file-access vulnerability exists in ServiSign security plugin, as long as the attackers learn the specific…

All CVEs affecting Changingtec Servisign →

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