CVE DatabaseCVE-2025-22457

Updated 2026-08-04한국어 권고문 →

CVE-2025-224579.8/CRITICALCISA KEVCWE-121CWE-787

Ivanti Connect Secure / Policy Secure / ZTA Gateways Remote Code Execution (RCE) Vulnerability Alert (CVE-2025-22457)

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Affected Vendors

ivanti

Affected Components

connect secure, policy secure, zta gateways

Published Date

2025-04-03

CVSS v3.1

9.8

CRITICAL

EPSS (30d)

100.0%

FIRST.org

CISA KEV

Exploited

NVD Source ↗

Executive & SecOps Summary

SECOPS ASSESSMENT

Affected Scope

Ivanti Connect Secure (before 22.7R2.6), Policy Secure (before 22.7R1.4), and ZTA Gateways (before 22.8R2.2)

Impact

Unauthenticated remote attackers can trigger a stack-based buffer overflow to execute arbitrary code with root privileges on the target gateway

Mitigation

Immediately apply the official security patches provided by the vendor and restrict access to external-facing management interfaces

Affected Products & Version Scope

Ivanti Connect Secure before 22.7R2.6, Ivanti Policy Secure before 22.7R1.4, and Ivanti ZTA Gateways before 22.8R2.2

Remediation & Live Workaround Commands

PATCH & WORKAROUND

1. Official Patch & Version Upgrade Commands

Immediately upgrade your Ivanti appliances to the patched versions recommended by the vendor:

Upgrade Ivanti Connect Secure to version 22.7R2.6 or later
Upgrade Ivanti Policy Secure to version 22.7R1.4 or later
Upgrade Ivanti ZTA Gateways to version 22.8R2.2 or later

2. Temporary Workaround & Hardening Configuration

If immediate patching is not feasible, restrict access to the management interfaces using firewalls or reverse proxies. Below is an example Nginx configuration to restrict access to trusted IP ranges (e.g., 192.168.10.0/24):

nginx

# Example Nginx configuration to restrict access to trusted IP ranges
server {
    listen 443 ssl;
    server_name vpn.internal.local;

    # Allow only trusted administrator IP ranges
    allow 192.168.10.0/24;
    deny all;

    location / {
        proxy_pass https://ivanti_backend_ip;
        proxy_set_header Host $host;
    }
}

3. Log Audit & IoC Verification Commands

Audit system logs for potential exploitation attempts, such as unexpected segmentation faults or daemon crashes. Use the following script to scan system logs for anomalies:

bash

#!/bin/bash
# Script to audit system logs for potential buffer overflow crash signatures

echo '[+] Scanning system logs for potential crash indicators...'

# Search for segmentation faults and core dumps
grep -Ei 'segfault|core dump|general protection fault' /var/log/messages /var/log/syslog 2>/dev/null

if [ $? -eq 0 ]; then
    echo '[WARNING] Potential exploitation or memory crash signatures detected in logs.'
else
    echo '[OK] No obvious memory crash signatures found in standard logs.'
fi

Interactive SecOps Remediation Checklist

0/4 (0%)

Recommended Security Control & Mitigation Partner

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Technical Root Cause & Exploitation Mechanics

1. Vulnerability Overview & Root Cause

This vulnerability (CVE-2025-22457) is a critical stack-based buffer overflow (CWE-121) and out-of-bounds write (CWE-787) vulnerability residing in the network service components of Ivanti Connect Secure, Policy Secure, and ZTA Gateways. The root cause is the lack of proper boundary validation when parsing incoming network packets or request headers, allowing input data that exceeds the allocated stack buffer size to overwrite adjacent memory spaces.

2. Exploitation Mechanics & Attack Scenario

An unauthenticated remote attacker can exploit this vulnerability by sending a specially crafted network request to the listening port of the vulnerable device. When the device processes this malicious payload, the lack of bounds checking causes the stack buffer to overflow, overwriting local variables and the function return address. This allows the attacker to hijack the execution flow, redirecting it to injected shellcode to execute arbitrary commands with elevated privileges (root) without any authentication.

3. Infrastructure & Business Impact

Since these devices serve as critical entry points for enterprise networks (VPN and ZTNA), successful exploitation can lead to complete compromise of the internal network infrastructure. Attackers can leverage this foothold to perform lateral movement, exfiltrate sensitive data, or deploy ransomware. This vulnerability is actively exploited in the wild (listed in CISA KEV) and has an EPSS score of 0.9998, representing an immediate and severe threat to organizational security.

Official Vendor Advisories & References

NVD Original English Description

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.

https://forums.ivanti.com/s/article/April-Security-Advisory-Ivanti-Connect-Secure-Policy-Secure-ZTA-Gateways-CVE-2025-22457

Source: 3c1d8aa1-5a33-4ea4-8992-aadd6440af75 · Vendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-22457

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 · US Government Resource

Frequently Asked SecOps Questions (CVE-2025-22457)

FAQ

Q1. How critical is CVE-2025-22457 and is it actively exploited in the wild?

CVE-2025-22457 is rated CVSS 9.8 (CRITICAL) with a 30-day EPSS exploitation probability of 100.0%. It is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, requiring immediate emergency remediation.

Q2. Which vendors and products are affected by CVE-2025-22457?

Primary impacted vendors include ivanti across connect secure, policy secure, zta gateways. Scope summary: Ivanti Connect Secure before 22.7R2.6, Ivanti Policy Secure before 22.7R1.4, and Ivanti ZTA Gateways before 22.8R2.2

Q3. What temporary mitigations or workarounds exist for CVE-2025-22457 before patching?

[Mitigation] Immediately apply the official security patches provided by the vendor and restrict access to external-facing management interfaces Follow the CLI remediation commands and interactive SecOps checklist on this page to restrict exposure prior to your maintenance window.

SECOPS WORKBENCH INTEGRATION