What is CVE-2025-4427?
An authentication bypass in the API component of Ivanti Endpoint Manager Mobile 12.5.0.0 and prior allows attackers to access protected resources without proper credentials via the API.
The record classifies CVE-2025-4427 under weakness class CWE-288. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction. 2 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 537 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 5.3 — MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - EPSS (FIRST)
- 99.9% probability of exploitation in the next 30 days, higher than 99.9% of all scored CVEs
- CISA KEV
- Listed since 2025-05-19, federal remediation deadline 2025-06-09
- Threadlinqs priority
- 9/10 — CISA KEV-listed, which Threadlinqs floors at 9
- Published
- 2025-05-13, last modified 2026-02-26
Is CVE-2025-4427 being exploited?
CISA added CVE-2025-4427 to the Known Exploited Vulnerabilities catalog on 2025-05-19, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2025-06-09 under BOD 22-01. Weaponised exploit code for CVE-2025-4427 is publicly available. 3 public proof-of-concept repositories are tracked for this identifier. A ProjectDiscovery Nuclei detection template exists (http/cves/2025/CVE-2025-4427.yaml). It currently carries a trending score of 55 in the Threadlinqs vulnerability feed.
- watchtowrlabs/watchTowr-vs-Ivanti-EPMM-CVE-2025-4427-CVE-2025-4428 (github)
- rxerium/CVE-2025-4427-CVE-2025-4428 (github)
- trickest/cve (trickest)
Affected products and versions
- Ivanti: Endpoint Manager Mobile, Endpoint Manager Mobile 12.5.0.0
How to fix CVE-2025-4427
Vendor advisory: https://forums.ivanti.com/s/article/Security-Advisory-Ivanti-Endpoint-Manager-Mobile-EPMM. Because CVE-2025-4427 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2025-06-09. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.
Threat activity tracking CVE-2025-4427
2 tracked threats in the Threadlinqs corpus reference CVE-2025-4427, either in the campaign’s CVE list or as an indicator on the campaign record.
- APT and Financial Attacks on Industrial Organizations in Q1 2026 (Kaspersky ICS CERT): Operation Neusploit (CVE-2026-21509/CVE-2026-21513), Poland Energy Wipers, TGR-STA-1030, MuddyWater, LockBit 5.0, Diesel Vortex — HIGH · 2026-10-31
- APT41/Silver Dragon Expanding Enterprise Attack Surface — Google Drive C2, AppDomain Hijacking, Cloud/Supply Chain Targeting — HIGH · 2026-03-27
Sources
Enriched from CVE.org, NVD, FIRST EPSS, CISA KEV, public proof-of-concept repositories, ProjectDiscovery Nuclei. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.