CVE-2019-12733: SiteVision 4 allows Remote Code Execution.

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HIGH 8.8UPGRADE

CVE-2019-12733 is a high-severity flaw (CVSS 8.8) affecting sitevision. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SiteVision 4 allows Remote Code Execution.

Why this priority

High severity
EPSS top 7%: very likely to be exploited
Public exploit reference

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	6.0% (top 7%)
CISA exploited list	No
Published	2019-12-06
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sitevision

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

Am I affected?

Timeline

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

sitevision sitevision UPGRADE

Affected: >= 4.0 and < 4.5.6 · >= 5.0 and < 5.1.1

Fixed in: 4.5.6, 5.1.1

Safe to downgrade to: a release before 4.0

1. Check installed version

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

2. UPGRADE to 4.5.6 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade sitevision

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 4.0 (Debian / Ubuntu)

apt-cache madison sitevision sudo apt install sitevision=<VERSION_BEFORE_4.0> sudo apt-mark hold sitevision

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

dnf --showduplicates list sitevision sudo dnf downgrade sitevision-<VERSION_BEFORE_4.0> sudo dnf versionlock add sitevision

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-2019-12733?

sitevision: upgrade to 4.5.6, 5.1.1. Exact commands for each OS are on this page.

Is CVE-2019-12733 being exploited?

CVE-2019-12733 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-2019-12733 affect?

CVE-2019-12733 affects sitevision. Severity is high (CVSS 8.8). SiteVision 4 allows Remote Code Execution.

How urgent is CVE-2019-12733?

Priority 59/100. High severity; EPSS top 7%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2019-12734 HIGH 8.8 UPGRADE SiteVision 4 has Incorrect Access Control.

References

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