PatchTheCVECVE-2019-12734: SiteVision 4 has Incorrect Access Control.
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HIGH 8.8UPGRADE
CVE-2019-12734 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 has Incorrect Access Control.
Why this priority
- High severity
- 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 | 2.1% (top 18%) |
| CISA exploited list | No |
| Weakness | CWE-862 |
| 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
- Published CVE record published
- Updated 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.
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-2019-12734?
sitevision: upgrade to 4.5.6, 5.1.1. Exact commands for each OS are on this page.
Is CVE-2019-12734 being exploited?
CVE-2019-12734 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-2019-12734 affect?
CVE-2019-12734 affects sitevision. Severity is high (CVSS 8.8). SiteVision 4 has Incorrect Access Control.
How urgent is CVE-2019-12734?
Priority 56/100. High severity; Public exploit reference
Related CVEs
- CVE-2019-12733 HIGH 8.8 UPGRADE SiteVision 4 allows Remote Code Execution.