Ivanti Connect Secure, Policy Secure, and ZTA Gateways Stack-Based Buffer Overflow Vulnerability
A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.6, Ivanti Policy Secure before version 22.7R1.4, and Ivanti ZTA Gateways before version 22.8R2.2 allows a remote unauthenticated attacker to achieve remote code execution.
What happened
A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.6, Ivanti Policy Secure before version 22.7R1.4, and Ivanti ZTA Gateways before version 22.8R2.2 allows a remote unauthenticated attacker to achieve remote code execution.
CISA lists it as exploited, added 04 Apr 2025.
Does it affect you
Names Ivanti Connect Secure. Enter the product and version you run to place it against the affected range the vendor published.
What to do
- Follow the vendor advisory for the fixed release and any interim mitigation.
forums.ivanti.com - Apply mitigations as set forth in the CISA instructions linked below.
cisa.gov
CISA’s notes for this entry:
- CISA Mitigation Instructions: cisa.gov/cisa-mitigation-instructions-cve-2025-22457
- Additional References: forums.ivanti.com/s/article/April-Security-Advisory-Ivanti-Connect-Secure-Policy-Secure-ZTA-Gateways-CVE-2025-22457
- nvd.nist.gov/vuln/detail/CVE-2025-22457
Affected, as published to NVD
- ivanti-cs
- Ivanti Connect Secure: everything below 22.7
The record
- NVD status
- Analyzed
- Published
- 03 Apr 2025, last modified 04 Aug 2026 (NVD)
- Severity
- CVSS 3.1 base score 9.8, Critical — computed here from the vector; NVD states 9.8.
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness
- CWE-121 Stack-based Buffer Overflow, CWE-787 Out-of-bounds Write (NVD; names by MITRE)
- Exploitation
- Listed in CISA’s Known Exploited Vulnerabilities catalogue since 04 Apr 2025; federal remediation due 11 Apr 2025. CISA records known use in ransomware campaigns. CISA entry
- Exploit probability
- EPSS 100.0%, 100th percentile — FIRST, scored 23 Oct 2026. FIRST EPSS
- Vendor
- Ivanti · Connect Secure, Policy Secure, and ZTA Gateways (CISA)
References on the NVD record
Sources
The verdict above is computed from the products and versions you entered and the affected ranges the vendor published to NVD. It does not inspect your environment, and this site never reports a product as unaffected: why.