CVE-2026-18851: Missing authorization in Ivanti Endpoint Manager Mobile before version 12.10.0.0, 12.9.0.2, and 12.8.0.4 allow

This month

HIGH 8.8UPGRADE

CVE-2026-18851 is a high-severity flaw (CVSS 8.8) affecting endpoint manager mobile. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Missing authorization in Ivanti Endpoint Manager Mobile before version 12.10.0.0, 12.9.0.2, and 12.8.0.4 allows a remote authenticated attacker to escalate their privileges to admin.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Weakness	CWE-862
Published	2026-09-08
Last modified	2026-09-09

Publisher (CNA): ivanti · Vendor: ivanti

Last updated 2026-09-09 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-08 15:18 UTCPublished CVE record published
2026-09-09 13:59 UTCUpdated Record last modified

ivanti endpoint manager mobile UPGRADE

Affected: < 12.8.0.4 · >= 12.9.0.0 and < 12.9.0.2 · 12.10.0.0

Fixed in: 12.8.0.4, 12.9.0.2

Safe to downgrade to: a release before 12.9.0.0

1. Check installed version

apt-cache policy endpoint-manager-mobile || rpm -q endpoint-manager-mobile || endpoint-manager-mobile --version

2. UPGRADE to 12.8.0.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade endpoint-manager-mobile

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade endpoint-manager-mobile

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 12.9.0.0 (Debian / Ubuntu)

apt-cache madison endpoint-manager-mobile sudo apt install endpoint-manager-mobile=<VERSION_BEFORE_12.9.0.0> sudo apt-mark hold endpoint-manager-mobile

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list endpoint-manager-mobile sudo dnf downgrade endpoint-manager-mobile-<VERSION_BEFORE_12.9.0.0> sudo dnf versionlock add endpoint-manager-mobile

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-18851?

endpoint manager mobile: upgrade to 12.8.0.4, 12.9.0.2. Exact commands for each OS are on this page.

Is CVE-2026-18851 being exploited?

CVE-2026-18851 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-18851 affect?

CVE-2026-18851 affects endpoint manager mobile. Severity is high (CVSS 8.8). Missing authorization in Ivanti Endpoint Manager Mobile before version 12.10.0.0, 12.9.0.2, and 12.8.0.4 allows a remote authenticated attacker to escalate their privileges to admin.

How urgent is CVE-2026-18851?

Priority 48/100. High severity

Software pages

Ivanti vulnerabilities

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References

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