How severe is CVE-2022-46304?

CVE-2022-46304 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-2022-46304 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-46304?

CVE-2022-46304 affects Changingtec Servisign. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-46304?

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-2022-46304 published?

CVE-2022-46304 was published on 2023-01-03 and last updated on 2026-06-17.

CVE-2022-46304

CVE-2022-46304 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-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Changingtec Servisign
Published: 2023-01-03
Last modified: 2026-06-17

Description

ChangingTec ServiSign component has insufficient filtering for special characters in the connection response parameter. An unauthenticated remote attacker can host a malicious website for the component user to access, which triggers command injection and allows the attacker to execute arbitrary system command to perform arbitrary system operation or disrupt service.

Frequently asked questions

What is CVE-2022-46304?: ChangingTec ServiSign component has insufficient filtering for special characters in the connection response parameter. An unauthenticated remote attacker can host a malicious website for the component user to access, which triggers command injection and allows the attacker to execute arbitrary system command to perform arbitrary system operation or disrupt service.
How severe is CVE-2022-46304?: CVE-2022-46304 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-2022-46304 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-46304?: CVE-2022-46304 affects Changingtec Servisign. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-46304?: 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-2022-46304 published?: CVE-2022-46304 was published on 2023-01-03 and last updated on 2026-06-17.

References

https://www.twcert.org.tw/tw/cp-132-6800-b5cf6-1.html

Affected products (1)

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

More vulnerabilities in Changingtec Servisign

CVE-2022-46306 — High (CVSS 8.8): ChangingTec ServiSign component has a path traversal vulnerability due to insufficient filtering for special characters…
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 →

Other CWE-78 (OS Command Injection) vulnerabilities

CVE-2026-19188 — Critical (CVSS 10.0): A critical OS command injection vulnerability has been identified in the Haiwell IoT Cloud HMI Gateway product. The…
CVE-2026-48362 — Critical (CVSS 10.0): ColdFusion is affected by an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')…
CVE-2026-16812 — Critical (CVSS 10.0): VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access…
CVE-2026-6516 — Critical (CVSS 10.0): Zohocorp ManageEngine ADAudit Plus versions before 8606 are affected by Unauthenticated Remote code execution due to…
CVE-2026-46339 — Critical (CVSS 10.0): 9Router is an AI router & token saver. From 0.4.30 until 0.4.37, 9Router's src/proxy.js middleware did not protect…
CVE-2026-59726 — Critical (CVSS 10.0): Ruflo is an agent meta-harness for Claude Code and Codex. Prior to 3.16.3, ruflo's default docker-compose deployment…

Browse all CWE-78 (OS Command Injection) vulnerabilities →