Is CVE-2025-22457 in the CISA KEV catalog?

Yes. CVE-2025-22457 is on the CISA Known Exploited Vulnerabilities list, added 2025-04-04, and has known ransomware campaign use.

What is the CVSS severity of CVE-2025-22457?

CVE-2025-22457 has a CVSS v3 base score of 9.0 (CRITICAL).

What is the EPSS score for CVE-2025-22457?

CVE-2025-22457 has an EPSS score of 99.98% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-22457?

Upgrade connect secure to 22.7 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2025-22457

CRITICALCISA KEVEPSS 100th pctl

9.0

CVSS v3

NVD

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.

CWE-121Stack-based Buffer Overflow CWE-787Out-of-bounds Write

How to fix

Remediation Available

connect secureNVD

Affected:< 22.7Fixed in:22.7CVE-2025-22457derived from NVD

policy secureNVD

Affected:< 22.7Fixed in:22.7CVE-2025-22457derived from NVD

zero trust access gatewayNVD

Affected:< 22.8Fixed in:22.8CVE-2025-22457derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

99.98%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Ivanti Connect Secure, Policy Secure, and ZTA Gateways Stack-Based Buffer Overflow Vulnerability

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.

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

Remediation due: 2025-04-11

Associated with ransomware campaigns

References

Vendor Advisory1

forums.ivanti.com

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-121 (Stack-based Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2009-0927	High	8.8	97%	KEV	Fix
CVE-2020-10924	High	8.8	87%	-	-
CVE-2022-20705	Critical	10.0	80%	-	-
CVE-2016-6563	Critical	9.8	80%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-24.