Is CVE-2025-34080 in the CISA KEV catalog?

No. CVE-2025-34080 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-34080?

CVE-2025-34080 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2025-34080?

CVE-2025-34080 has an EPSS score of 1.08% (61th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-34080?

Upgrade conprosys hmi system to 3.7.7 or later.

CVE & CISA-KEV Catalog

CVE-2025-34080

MEDIUM

6.1

CVSS v3

NVD

Description

The Contec Co.,Ltd. CONPROSYS HMI System (CHS) is vulnerable to Cross-Site Scripting (XSS) in the getqsetting.php functionality that could allow reflected execution of scripts in the browser on interaction.This issue affects CONPROSYS HMI System (CHS): before 3.7.7.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

conprosys hmi systemNVD

Affected:< 3.7.7Fixed in:3.7.7CVE-2025-34080derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

1.08%probability of exploitation in 30 days

61stpercentile

Moderate risk: more likely to be exploited than 61% of all known CVEs.

References

Third-Party Advisory1

jvn.jp

Other references1

vulncheck.com

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-04.