CVE-2020-13900 json
An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0.
published 2020-06-10 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-6108
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.4%
- EPSS 2.4% chance of exploitation in 30 days, percentile 84%
- public exploits
- 0
- none known
Summary
An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_sdp_preparse in sdp.c has a NULL pointer dereference.
Patch / fix
- janus Debian 14, Debian 12 0.10.1-1
debian advisories DEBIAN-CVE-2020-13900
- github.com/meetecho/janus-gateway#2214 pull request
Exploit prediction
2.43% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/merrychap/poc_exploits/tree/master/janus-webrtc/CVE-2020-13900 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
References
-
github.com
/meetecho/janus-gateway/pull/2214
patch, third-party-advisory
-
github.com
/merrychap/poc_exploits/tree/master/janus-webrtc/CVE-2020-13900
exploit, third-party-advisory
-
github.com
/meetecho/janus-gateway/blob/v0.10.0/sdp.c#L64
third-party-advisory
-
github.com
/meetecho/janus-gateway/blob/v0.10.0/sdp.c#L74
third-party-advisory
Sources
- CVE List CVE-2020-13900
- NVD CVE-2020-13900
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.