---
title: "CVE-2025-22457: Ivanti Connect Secure, Policy Secure, and ZTA Gateways Stack-Based Buffer Overflow Vulnerability"
url: https://erroneo.us/security/cve/CVE-2025-22457/
description: "CVE-2025-22457 (Ivanti Connect Secure, Policy Secure, and ZTA Gateways): Exploited in the wild (CISA KEV). A stack-based buffer overflow in Ivanti Connect…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-04-03
date_modified: 2026-08-04
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-22457"
kev: true
cvss: 9
epss: 0.99981
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-22457: Ivanti Connect Secure, Policy Secure, and ZTA Gateways Stack-Based Buffer Overflow Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run Ivanti Connect Secure, Policy Secure, and ZTA Gateways. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2025-04-04, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2025-04-11 ; treat that as the outer limit, not the target. CISA also lists it as known to be used in ransomware campaigns .
- EPSS 100.0% , percentile 100.0: FIRST’s model estimates a 100.0% chance of exploitation activity in the next 30 days, higher than 100.0% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.

## What it is

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.

## Affected products (CVE record)

- Ivanti Connect Secure: see advisory
- Ivanti Policy Secure: see advisory
- Ivanti Neurons for ZTA gateways: see advisory

## Severity

- ivanti CVSS 3.1: 9 `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: added 2025-04-04; federal due date 2025-04-11. Known ransomware use: Known.
- CISA required action: Apply mitigations as set forth in the CISA instructions linked below.
- CISA SSVC assessment: exploitation active , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 99.98% probability of exploitation activity in the next 30 days; percentile 100.0.

## Sources

- [Listed in CISA KEV notes (forums.ivanti.com)](https://forums.ivanti.com/s/article/April-Security-Advisory-Ivanti-Connect-Secure-Policy-Secure-ZTA-Gateways-CVE-2025-22457)
- [CVE.org record CVE-2025-22457](https://www.cve.org/CVERecord?id=CVE-2025-22457)
- [NVD entry CVE-2025-22457](https://nvd.nist.gov/vuln/detail/CVE-2025-22457)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-22457)
- [Listed in CISA KEV notes (cisa.gov)](https://www.cisa.gov/cisa-mitigation-instructions-cve-2025-22457)

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Source page: https://erroneo.us/security/cve/CVE-2025-22457/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt