Is CVE-2025-55143 in the CISA KEV catalog?

No. CVE-2025-55143 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-55143?

CVE-2025-55143 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2025-55143?

CVE-2025-55143 has an EPSS score of 0.66% (47th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-55143?

Upgrade connect secure to 22.7 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2025-55143

MEDIUM

6.1

CVSS v3

NVD

Description

Reflected text injection in Ivanti Connect Secure before 22.7R2.9 or 22.8R2, Ivanti Policy Secure before 22.7R1.6, Ivanti ZTA Gateway before 2.8R2.3-723 and Ivanti Neurons for Secure Access before 22.8R1.4 (Fix deployed on 02-Aug-2025) allows a remote unauthenticated attacker to inject arbitrary text into a crafted HTTP response. User interaction is required.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

connect secureNVD

Affected:< 22.7Fixed in:22.7CVE-2025-55143derived from NVD

neurons for secure accessNVD

Affected:< 22.8Fixed in:22.8CVE-2025-55143derived from NVD

policy secureNVD

Affected:< 22.7Fixed in:22.7CVE-2025-55143derived 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

0.66%probability of exploitation in 30 days

47thpercentile

Moderate risk: more likely to be exploited than 47% of all known CVEs.

References

Vendor Advisory1

forums.ivanti.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 2025-09-24.