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CVE-2022-36220: Kiosk breakout (without quit password) in Safe Exam Browser (Windows) <3.4.0, which allows an attacker to achi

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CRITICAL 9.8REMOTEUPGRADE

CVE-2022-36220 is a critical-severity flaw (CVSS 9.8) affecting safe exam browser. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Kiosk breakout (without quit password) in Safe Exam Browser (Windows) <3.4.0, which allows an attacker to achieve code execution via the browsers' print dialog.

Why this priority

  • Critical severity
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score9.8 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance1.2% (top 33%)
CISA exploited listNo
Published2022-08-19
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: ethz

Share: LinkedIn · X · Reddit

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

Am I affected?

Timeline

ethz safe exam browser UPGRADE
Affected: < 3.4.0
Fixed in: 3.4.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy safe-exam-browser || rpm -q safe-exam-browser || safe-exam-browser --version
2. UPGRADE to 3.4.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade safe-exam-browser
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade safe-exam-browser
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-2022-36220?

safe exam browser: upgrade to 3.4.0. Exact commands for each OS are on this page.

Is CVE-2022-36220 being exploited?

CVE-2022-36220 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-2022-36220 affect?

CVE-2022-36220 affects safe exam browser. Severity is critical (CVSS 9.8). Kiosk breakout (without quit password) in Safe Exam Browser (Windows) <3.4.0, which allows an attacker to achieve code execution via the browsers' print dialog.

How urgent is CVE-2022-36220?

Priority 56/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Windows vulnerabilities

References

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