Buffer overflow in Ivanti Connect Secure

CVE-2025-22457

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.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 1.000 (100.0th percentile), scored .

Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 100.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: .

Required action: Apply mitigations as set forth in the CISA instructions linked below.

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-22457?
CVE-2025-22457 is a critical-severity vulnerability in Ivanti Connect Secure, classified under Stack-based Buffer Overflow. CVSS score: 9.0/10. Published 2025-04-03.
How severe is CVE-2025-22457?
Critical severity. CVSS v3 base score is 9.0 out of 10.
Is CVE-2025-22457 known to be exploited?
Yes. CVE-2025-22457 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-04-04), indicating it is being actively exploited. 23 public proof-of-concept repositories are indexed.