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Vulnerability record · CVE-2025-55146 · published 9 September 2025

CVE-2025-55146: Ivanti connect secure unchecked return value vulnerability

Ivanti · Connect Secure

An unchecked return value 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 with admin privileges to trigger a denial of service.

4.9 CVSS 3.1 Medium EPSS 0.80% · top 44.8% CWE-252 · Unchecked return value
4.9CVSS 3.1 base score
0.80%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

An unchecked return value 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 with admin privileges to trigger a denial of service.

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://forums.ivanti.com/s/article/September-Security-Advisory-Ivanti-Connect-Secure-Policy-Secure-ZTA-Gateways-and-Neu Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2021-22893Ivanti Pulse Connect Secure authentication bypass and use-after-free enabling RCEPulse Connect Secure 9.0R3/9.1R1 and higher contains an authentication bypass exposed through the Windows File Share Browser and Pulse Secure Collabo…KEVEPSS 47%analysed10.0CVE-2019-11510Pulse Connect Secure path traversal allows unauthenticated file readPulse Connect Secure versions 8.2 before 8.2R12.1, 8.3 before 8.3R7.1, and 9.0 before 9.0R3.4 contain a path traversal (CWE-22) flaw. An unauthentica…KEVEPSS 100%analysed9.8CVE-2025-22457Ivanti Connect Secure, Policy Secure and ZTA Gateways stack buffer overflow RCEA stack-based buffer overflow (CWE-121/CWE-787) in Ivanti Connect Secure, Policy Secure and ZTA Gateways allows a remote, unauthenticated attacker to…KEVEPSS 100%analysed9.1CVE-2024-21887Ivanti Connect Secure and Policy Secure web component command injectionIvanti Connect Secure and Policy Secure (9.x, 22.x) contain a command injection flaw (CWE-77) in web components. An authenticated administrator can s…KEVEPSS 100%analysed9.0CVE-2025-0282Ivanti Connect Secure stack buffer overflow enables unauthenticated RCEA stack-based buffer overflow (CWE-121/CWE-787) in Ivanti Connect Secure, Policy Secure and Neurons for ZTA gateways lets a remote, unauthenticated a…KEVEPSS 100%analysed8.8CVE-2021-22894Pulse Connect Secure buffer overflow allows root code executionPulse Connect Secure before 9.1R11.4 contains a buffer overflow reachable through a maliciously crafted meeting room. A remote authenticated attacker…KEVEPSS 41%analysed8.8CVE-2021-22899Pulse Connect Secure command injection via Windows Resource ProfilesPulse Connect Secure before 9.1R11.4 contains a command injection flaw (CWE-77) in the Windows Resource Profiles feature. An attacker who can authent…KEVEPSS 23%analysed8.2CVE-2024-21893Ivanti Connect Secure SAML SSRF allows unauthenticated resource accessThe SAML component of Ivanti Connect Secure, Policy Secure and Neurons for ZTA contains a server-side request forgery flaw that lets an attacker reac…KEVEPSS 100%analysed

Source: NIST National Vulnerability Database (record CVE-2025-55146), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.