CVE-2022-28120: Beijing Runnier Network Technology Co., Ltd Open virtual simulation experiment teaching management platform so

This month

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2022-28120 is a critical-severity flaw (CVSS 9.8) affecting open virtual simulation experiment teaching management platform. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Beijing Runnier Network Technology Co., Ltd Open virtual simulation experiment teaching management platform software 2.0 has a file upload vulnerability, which can be exploited by an attacker to gain control of the server.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.1% (top 36%)
CISA exploited list	No
Weakness	CWE-434
Published	2022-05-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: rainier

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

Am I affected?

Timeline

2022-05-05 17:15 UTCPublished CVE record published
2026-06-17 04:38 UTCUpdated Record last modified

rainier open virtual simulation experiment teaching management platform DOWNGRADE

Affected: 2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy open-virtual-simulation-experiment-teaching-management-platform || rpm -q open-virtual-simulation-experiment-teaching-management-platform || open-virtual-simulation-experiment-teaching-management-platform --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison open-virtual-simulation-experiment-teaching-management-platform sudo apt install open-virtual-simulation-experiment-teaching-management-platform=<VERSION_BEFORE_2.0> sudo apt-mark hold open-virtual-simulation-experiment-teaching-management-platform

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list open-virtual-simulation-experiment-teaching-management-platform sudo dnf downgrade open-virtual-simulation-experiment-teaching-management-platform-<VERSION_BEFORE_2.0> sudo dnf versionlock add open-virtual-simulation-experiment-teaching-management-platform

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-2022-28120?

open virtual simulation experiment teaching management platform: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-28120 being exploited?

CVE-2022-28120 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-2022-28120 affect?

CVE-2022-28120 affects open virtual simulation experiment teaching management platform. Severity is critical (CVSS 9.8). Beijing Runnier Network Technology Co., Ltd Open virtual simulation experiment teaching management platform software 2.0 has a file upload vulnerability, which can be exploited by an attacker to gain control of the server.

How urgent is CVE-2022-28120?

Priority 55/100. Critical severity; Remotely exploitable, no login, no user action

References

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