CVE-2019-9197: The com.unity3d.kharma protocol handler in Unity Editor 2018.3 allows remote attackers to execute arbitrary co

This month

HIGH 8.8UPGRADE

CVE-2019-9197 is a high-severity flaw (CVSS 8.8) affecting unity editor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The com.unity3d.kharma protocol handler in Unity Editor 2018.3 allows remote attackers to execute arbitrary code.

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	None
User interaction	Required
EPSS exploit chance	3.7% (top 10%)
CISA exploited list	No
Weakness	CWE-78
Published	2019-12-31
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: unity3d

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-12-31 17:15 UTCPublished CVE record published
2026-06-17 02:43 UTCUpdated Record last modified

unity3d unity editor UPGRADE

Affected: >= 5.6.0 and < 5.6.7f1 · >= 2017.4.22 and < 2017.4.22f1 · >= 2018.2.21 and < 2018.2.21f1 · >= 2018.3.7 and < 2018.3.7f1 · >= 2019.1.0 and < 2019.1.0b5 · >= 2019.2.0 and < 2019.2.0a7

Fixed in: 5.6.7f1, 2017.4.22f1, 2018.2.21f1, 2018.3.7f1, 2019.1.0b5, 2019.2.0a7

Safe to downgrade to: a release before 5.6.0

1. Check installed version

apt-cache policy unity-editor || rpm -q unity-editor || unity-editor --version

2. UPGRADE to 5.6.7f1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade unity-editor

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade unity-editor

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 5.6.0 (Debian / Ubuntu)

apt-cache madison unity-editor sudo apt install unity-editor=<VERSION_BEFORE_5.6.0> sudo apt-mark hold unity-editor

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

dnf --showduplicates list unity-editor sudo dnf downgrade unity-editor-<VERSION_BEFORE_5.6.0> sudo dnf versionlock add unity-editor

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-2019-9197?

unity editor: upgrade to 5.6.7f1, 2017.4.22f1, 2018.2.21f1, 2018.3.7f1, 2019.1.0b5, 2019.2.0a7. Exact commands for each OS are on this page.

Is CVE-2019-9197 being exploited?

CVE-2019-9197 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-2019-9197 affect?

CVE-2019-9197 affects unity editor. Severity is high (CVSS 8.8). The com.unity3d.kharma protocol handler in Unity Editor 2018.3 allows remote attackers to execute arbitrary code.

How urgent is CVE-2019-9197?

Priority 53/100. High severity

Software pages

Unity vulnerabilities

Related CVEs

CVE-2017-12939 CRITICAL 9.8 DOWNGRADE A Remote Code Execution vulnerability was identified in all Windows versions of Unity Editor, e.g., before 5.3

References

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