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CRITICAL · CVSS 9.8 CISA Known Exploited Vulnerability

CVE-2026-1281

Ivanti Endpoint Manager Mobile (EPMM) Code Injection Vulnerability

Ivanti Endpoint Manager Mobile (EPMM)

A code injection in Ivanti Endpoint Manager Mobile allowing attackers to achieve unauthenticated remote code execution.

CVSS
9.8
CRITICAL
EPSS
98.7%
30-day exploitation
Ransomware groups
0
recorded exploiting
Published
29 Jan 2026
CWE-94

Exploitation status

CISA Known Exploited Vulnerabilities

Listed by CISA on 29 January 2026. US federal agencies were required to remediate it by 1 February 2026.

EPSS — exploitation probability

FIRST puts the probability of exploitation activity in the next 30 days at 98.7%, which is higher than 99.9% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.

CVSS vector

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

Frequently asked questions

Is CVE-2026-1281 being exploited by ransomware groups?

No ransomware group in this database is currently recorded as exploiting CVE-2026-1281.

What does CVE-2026-1281 affect?

CVE-2026-1281 affects Ivanti Endpoint Manager Mobile (EPMM). A code injection in Ivanti Endpoint Manager Mobile allowing attackers to achieve unauthenticated remote code execution.

How severe is CVE-2026-1281?

CVE-2026-1281 is rated CRITICAL with a CVSS base score of 9.8. EPSS puts the probability of exploitation in the next 30 days at 98.7%, higher than 99.9% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 1 February 2026.

How should organisations respond to CVE-2026-1281?

Apply the vendor patch for Ivanti Endpoint Manager Mobile (EPMM) as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.