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CVE-2025-22457

KEVRansomware UseIvanti Connect Secure, Policy Secure, and ZTA Gateways Stack-Based Buffer Overflow Vulnerability
Description

Ivanti Connect Secure, Policy Secure, and ZTA Gateways contains a stack-based buffer overflow vulnerability that allows a remote unauthenticated attacker to achieve remote code execution.

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.

CVSS 3.1 vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
PublishedApr 3, 2025
Last modifiedAug 4, 2026
Added to KEVApr 4, 2025
Remediation dueApr 11, 2025
References
0 recent articles mention this CVE
    95
    Risk assessment · Critical

    Actively exploited and used by ransomware crews. Patch immediately.

    Exploitation
    Confirmed in the wild (CISA KEV)
    Federal remediation deadline
    Overdue by 563 days
    Ransomware
    Used in known ransomware campaigns
    CVSS
    9.0 CRITICAL
    EPSS (30-day exploit probability)
    100.0% · top 1% of all CVEs
    Weakness
    CWE-121
    Attack vector
    Network, remotely reachable
    Preconditions
    No privileges and no user interaction
    Recommended actions
    1. 1.Apply mitigations as set forth in the CISA instructions linked below.
    2. 2.Treat as emergency change: patch or isolate internet-facing instances first.
    3. 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
    4. 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
    5. 5.Verify offline/immutable backups and segment the affected systems. This flaw is used for ransomware initial access.

    Assessment is derived automatically from the live signals above; verify against your own asset inventory.