Threat Intelligence / CVE / CVE-2026-1340

CVE-2026-1340 — Ivanti Endpoint Manager Mobile

CISA KEV

CVSS v3.1 9.8 (CRITICAL) · EPSS 67.8% (higher than 98.5% of all scored CVEs) · Priority 9/10 · Published 2026-01-29

As of 2026-04-09, CVE-2026-1340 is a CRITICAL-severity vulnerability in Ivanti Endpoint Manager Mobile, CVSS v3.1 9.8, EPSS 67.8% (98.5th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-04-08), with a US federal remediation deadline of 2026-04-11. Threadlinqs Intelligence links 3 tracked threat campaigns to CVE-2026-1340, most recently “Ivanti EPMM Unauthenticated RCE via Code Injection — CVE-2026-1281 & CVE-2026-1340 (Sleeper Shells)”.

Last updated: 2026-04-09

What is CVE-2026-1340?

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

The record classifies CVE-2026-1340 under weakness class CWE-94. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 227 days ago.

Severity and exploitation probability

CVSS v3.1 base score: 9.8 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (FIRST): 67.8% probability of exploitation in the next 30 days, higher than 98.5% of all scored CVEs
CISA KEV: Listed since 2026-04-08, federal remediation deadline 2026-04-11
Threadlinqs priority: 9/10 — CISA KEV-listed, which Threadlinqs floors at 9
Published: 2026-01-29, last modified 2026-04-09

Is CVE-2026-1340 being exploited?

CISA added CVE-2026-1340 to the Known Exploited Vulnerabilities catalog on 2026-04-08, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2026-04-11 under BOD 22-01. It currently carries a trending score of 45 in the Threadlinqs vulnerability feed.

Affected products and versions

Ivanti: Endpoint Manager Mobile

How to fix CVE-2026-1340

Vendor advisory: https://forums.ivanti.com/s/article/Security-Advisory-Ivanti-Endpoint-Manager-Mobile-EPMM-CVE-2026-1281-CVE-2026-1340. Because CVE-2026-1340 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2026-04-11. 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-2026-1340

3 tracked threats in the Threadlinqs corpus reference CVE-2026-1340, either in the campaign’s CVE list or as an indicator on the campaign record.

Ivanti EPMM Unauthenticated RCE via Code Injection — CVE-2026-1281 & CVE-2026-1340 (Sleeper Shells) — CRITICAL · 2026-03-13
Ivanti EPMM Dual-CVE Unauthenticated RCE Chain (CVE-2026-1281 + CVE-2026-1340) — CVSS 9.8, CISA KEV, Dutch Government Breached, Bulletproof Hosting IAB, Sleeper Webshells, 28K+ Attacking IPs — CRITICAL · 2026-02-16
Ivanti EPMM Pre-Auth Remote Code Execution (CVE-2026-1281 / CVE-2026-1340) — CRITICAL · 2026-01-29

Sources

Seeded from nvd and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.

Full detection coverage & IOCs for threats exploiting CVE-2026-1340 are available via the Threadlinqs MCP server (Purple tier). View plans →

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