CVE-2020-14033: An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0

Q: How do I fix CVE-2020-14033?

janus: upgrade to newer than 0.10.0. Exact commands for each OS are on this page.

Q: Is CVE-2020-14033 being exploited?

CVE-2020-14033 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-2020-14033 affect?

CVE-2020-14033 affects janus. Severity is critical (CVSS 9.8). An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_streaming_rtsp_parse_sdp in plugins/janus_streaming.c has a Buffer Overflow via a crafted RTSP server.

Q: How urgent is CVE-2020-14033?

Priority 59/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2020-14033 is a critical-severity flaw (CVSS 9.8) affecting janus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_streaming_rtsp_parse_sdp in plugins/janus_streaming.c has a Buffer Overflow via a crafted RTSP server.

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	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-120
Published	2020-06-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: meetecho

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

Am I affected?

Timeline

2020-06-15 17:15 UTCPublished CVE record published
2026-06-17 02:54 UTCUpdated Record last modified

meetecho janus UPGRADE

Affected: <= 0.10.0

Fixed in: newer than 0.10.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 0.10.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade janus

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-2020-14033?

janus: upgrade to newer than 0.10.0. Exact commands for each OS are on this page.

Is CVE-2020-14033 being exploited?

CVE-2020-14033 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-2020-14033 affect?

CVE-2020-14033 affects janus. Severity is critical (CVSS 9.8). An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_streaming_rtsp_parse_sdp in plugins/janus_streaming.c has a Buffer Overflow via a crafted RTSP server.

How urgent is CVE-2020-14033?

Priority 59/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-4124 MEDIUM 6.1 UPGRADE janus-gateway is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Script
CVE-2021-4020 MEDIUM 5.4 UPGRADE janus-gateway is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Script
CVE-2020-14034 CRITICAL 9.8 UPGRADE An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0
CVE-2020-13901 CRITICAL 9.8 UPGRADE An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0
CVE-2020-13900 HIGH 7.5 UPGRADE An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0

References

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