How severe is CVE-2025-55145?

CVE-2025-55145 has a CVSS 3.x base score of 8.9, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2025-55145 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-55145?

CVE-2025-55145 primarily affects Ivanti Neurons For Secure Access. In total, 31 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-55145?

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.

Does CVE-2025-55145 have an EU (EUVD) identifier?

Yes. CVE-2025-55145 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27418.

When was CVE-2025-55145 published?

CVE-2025-55145 was published on 2025-09-09 and last updated on 2026-06-17.

CVE-2025-55145

CVE-2025-55145 is a high-severity vulnerability in Ivanti Neurons For Secure Access with a CVSS 3.x base score of 8.9. 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-862.

Key facts

Severity: High (CVSS 3.x base score 8.9)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-27418
Weakness: CWE-862
Affected product: Ivanti Neurons For Secure Access
Published: 2025-09-09
Last modified: 2026-06-17

Description

Missing authorization 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 authenticated attacker to hijack existing HTML5 connections.

Frequently asked questions

What is CVE-2025-55145?: Missing authorization 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 authenticated attacker to hijack existing HTML5 connections.
How severe is CVE-2025-55145?: CVE-2025-55145 has a CVSS 3.x base score of 8.9, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2025-55145 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-55145?: CVE-2025-55145 primarily affects Ivanti Neurons For Secure Access. In total, 31 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-55145?: 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.
Does CVE-2025-55145 have an EU (EUVD) identifier?: Yes. CVE-2025-55145 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27418.
When was CVE-2025-55145 published?: CVE-2025-55145 was published on 2025-09-09 and last updated on 2026-06-17.

References

https://forums.ivanti.com/s/article/September-Security-Advisory-Ivanti-Connect-Secure-Policy-Secure-ZTA-Gateways-and-Neurons-for-Secure-Access-Multiple-CVEs?language=en_US

Affected products (31)

cpe:2.3:a:ivanti:neurons_for_secure_access:*:*:*:*:*:*:*:*
cpe:2.3:a:ivanti:neurons_for_secure_access:22.8:r1:*:*:*:*:*:*
cpe:2.3:a:ivanti:neurons_for_secure_access:22.8:r1.1:*:*:*:*:*:*
cpe:2.3:a:ivanti:neurons_for_secure_access:22.8:r1.2:*:*:*:*:*:*
cpe:2.3:a:ivanti:neurons_for_secure_access:22.8:r1.3:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:*:*:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:-:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:r1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:r1.1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:r1.2:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:r1.3:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:r1.4:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:r1.5:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:r2:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:r2.1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:r2.2:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:r2.3:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:r2.4:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:r2.5:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:r2.6:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:r2.7:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:22.7:r2.8:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:*:*:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:22.7:-:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:22.7:r1:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:22.7:r1.1:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:22.7:r1.2:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:22.7:r1.3:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:22.7:r1.4:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:22.7:r1.5:*:*:*:*:*:*
cpe:2.3:a:ivanti:zero_trust_access_gateway:22.8:r2.2:*:*:*:*:*:*

More vulnerabilities in Ivanti Neurons For Secure Access

CVE-2025-55147 — High (CVSS 8.8): CSRF in Ivanti Connect Secure before 22.7R2.9 or 22.8R2, Ivanti Policy Secure before 22.7R1.6, Ivanti ZTA Gateway…
CVE-2025-55142 — High (CVSS 8.8): Missing authorization in Ivanti Connect Secure before 22.7R2.9 or 22.8R2, Ivanti Policy Secure before 22.7R1.6, Ivanti…
CVE-2025-55141 — High (CVSS 8.8): Missing authorization in Ivanti Connect Secure before 22.7R2.9 or 22.8R2, Ivanti Policy Secure before 22.7R1.6, Ivanti…
CVE-2025-55148 — High (CVSS 7.6): Missing authorization in Ivanti Connect Secure before 22.7R2.9 or 22.8R2, Ivanti Policy Secure before 22.7R1.6, Ivanti…
CVE-2025-5462 — High (CVSS 7.5): A heap-based buffer overflow in Ivanti Connect Secure before 22.7R2.8 or 22.8R2, Ivanti Policy Secure before 22.7R1.5,…
CVE-2025-5456 — High (CVSS 7.5): A buffer over-read vulnerability in Ivanti Connect Secure before 22.7R2.8 or 22.8R2, Ivanti Policy Secure before…

All CVEs affecting Ivanti Neurons For Secure Access →

Other CWE-862 (Missing Authorization) vulnerabilities

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CVE-2026-2031 — Critical (CVSS 10.0): An Improper Access Control vulnerability in several internal API endpoints for Google Cloud Application Integration…
CVE-2026-34976 — Critical (CVSS 10.0): Dgraph is an open source distributed GraphQL database. Prior to 25.3.1, the restoreTenant admin mutation is missing…
CVE-2025-30416 — Critical (CVSS 10.0): Sensitive data disclosure and manipulation due to missing authorization. The following products are affected: Acronis…
CVE-2025-45854 — Critical (CVSS 10.0): /server/executeExec of JEHC-BPM 2.0.1 allows attackers to execute arbitrary code via execParams.

Browse all CWE-862 (Missing Authorization) vulnerabilities →