What’s Vulnerable › Vulnerabilities

CVE-2020-13901

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-06-10 · updated 2026-06-17
• Weakness: CWE-787

Description

An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_sdp_merge in sdp.c has a stack-based buffer overflow.

Affected products

• meetecho/janus-gateway: from 0.3.0 through 0.10.0

References

• https://github.com/meetecho/janus-gateway/blob/v0.10.0/sdp.c#L1248
• https://github.com/meetecho/janus-gateway/pull/2214
• https://github.com/merrychap/poc_exploits/tree/master/janus-webrtc/CVE-2020-13901
• https://github.com/meetecho/janus-gateway/blob/v0.10.0/sdp.c#L1248
• https://github.com/meetecho/janus-gateway/pull/2214
• https://github.com/merrychap/poc_exploits/tree/master/janus-webrtc/CVE-2020-13901

Get alerted when CVE-2020-13901 or the next vulnerability affects your stack