CVE-2019-12811: ActiveX Control in MyBuilder before 6.2.2019.814 allow an attacker to execute arbitrary command via the ShellO

Q: How do I fix CVE-2019-12811?

mybuilder: upgrade to 6.2.2019.814. Exact commands for each OS are on this page.

Q: Is CVE-2019-12811 being exploited?

CVE-2019-12811 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-12811 affect?

CVE-2019-12811 affects mybuilder. Severity is critical (CVSS 9.8). ActiveX Control in MyBuilder before 6.2.2019.814 allow an attacker to execute arbitrary command via the ShellOpen method. This can be leveraged for code execution

Q: How urgent is CVE-2019-12811?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2019-12811 is a critical-severity flaw (CVSS 9.8) affecting mybuilder. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ActiveX Control in MyBuilder before 6.2.2019.814 allow an attacker to execute arbitrary command via the ShellOpen method. This can be leveraged for code execution

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.2% (top 18%)
CISA exploited list	No
Weakness	CWE-78
Published	2019-10-07
Last modified	2026-06-17

Publisher (CNA): KrCERT/CC · Vendor: activesoft

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

Am I affected?

Timeline

2019-10-07 15:15 UTCPublished CVE record published
2026-06-17 02:15 UTCUpdated Record last modified

activesoft mybuilder UPGRADE

Affected: < 6.2.2019.814

Fixed in: 6.2.2019.814

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy mybuilder || rpm -q mybuilder || mybuilder --version

2. UPGRADE to 6.2.2019.814 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mybuilder

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mybuilder

Note

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

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-2019-12811?

mybuilder: upgrade to 6.2.2019.814. Exact commands for each OS are on this page.

Is CVE-2019-12811 being exploited?

CVE-2019-12811 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-2019-12811 affect?

CVE-2019-12811 affects mybuilder. Severity is critical (CVSS 9.8). ActiveX Control in MyBuilder before 6.2.2019.814 allow an attacker to execute arbitrary command via the ShellOpen method. This can be leveraged for code execution

How urgent is CVE-2019-12811?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2019-12812 CRITICAL 9.8 UPGRADE MyBuilder viewer before 6.2.2019.814 allow an attacker to execute arbitrary command via specifically crafted c

References

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