CVE-2025-22457: Ivanti Connect Secure, Policy Secure, and…

Should you act?

Exploited: patch now if you run it

CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

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.

CISA’s summary

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.

Weakness type: CWE-121.

Product: Ivanti Connect Secure, Policy Secure, and ZTA Gateways · Assigned by: ivanti · Published: 2025-04-03

Affected and fixed versions

Vendor	Product	Affected versions (per CVE record)
Ivanti	Connect Secure	see vendor advisory
Ivanti	Policy Secure	see vendor advisory
Ivanti	Neurons for ZTA gateways	see vendor advisory

Severity scores

Scored by	CVSS	Score	Vector
ivanti	3.1	9 Critical	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H`

Attack vector: network (remotely reachable)
Attack complexity: high (needs special conditions)
Privileges required: none (no login)
User interaction: none
Scope: changed (can affect other components)

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

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.

Timeline

2025-04-03 — CVE record published by ivanti
2025-04-04 — Added to CISA’s Known Exploited Vulnerabilities catalog
2025-04-11 — CISA remediation deadline for US federal agencies
2026-08-04 — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.