CVE-2020-13899
An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0....
An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_process_incoming_request in janus.c discloses information from uninitialized stack memory.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
7.5
An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_process_incoming_request in janus.c discloses information from uninitialized stack memory.
- Record
CVE-2020-13899- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-908
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_process_incoming_request in janus.c discloses information from uninitialized stack memory.
- Record
CVE-2020-13899- Updated
- 2026-11-02
EUVDEUVD-2020-6107 No score
An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_process_incoming_request in janus.c discloses information from uninitialized stack memory.
- Record
EUVD-2020-6107- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x6c3-mvjq-f4mg No score
An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0....
An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_process_incoming_request in janus.c discloses information from uninitialized stack memory.
- Record
GHSA-x6c3-mvjq-f4mg- Weakness
- CWE-909
- Updated
- 2026-11-02
OSV
7.5
An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_process_incoming_request in janus.c discloses information from uninitialized stack memory.
- Record
CVE-2020-13899- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2020-13899
7.5
An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_process_incoming_request in janus.c discloses information from uninitialized stack memory.
- Record
DEBIAN-CVE-2020-13899- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-13899
7.5
An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_process_incoming_request in janus.c discloses information from uninitialized stack memory.
- Record
UBUNTU-CVE-2020-13899- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
janusDebian:12 |
before 0.10.1-1 | 0.10.1-1 |
janusDebian:14 |
before 0.10.1-1, plus listed versions 0.10.0-10.2.2+dfsg-10.2.2+dfsg-20.2.2+dfsg-30.2.2+dfsg-4 Show 30 moreShow less0.2.2+dfsg-5~exp10.2.2+dfsg-5~exp20.2.2+dfsg-5~exp30.2.3-10.2.4-10.2.4-20.2.5-10.2.6-10.3.1-10.4.2-10.4.4-10.4.5-10.4.5-20.5.0-10.6.0-10.6.0-20.6.1-10.6.2-10.6.3-10.7.2-10.7.2-20.7.3-10.7.3-20.9.1+20200313-10.9.1-10.9.2-10.9.2-1~bpo10+10.9.3-10.9.4-10.9.5-1 |
0.10.1-1 |
janusUbuntu:18.04:LTS |
All versions, plus listed versions 0.2.4-20.2.5-10.2.6-10.2.6-1build10.2.6-1build2 |
None known |
janusUbuntu:20.04:LTS |
All versions, plus listed versions 0.7.3-20.7.3-2build1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-13899 is a high vulnerability (CVSS 7.5) in Meetecho Janus, published June 10, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.20%, the 82nd percentile. Fixed in janus 0.10.1-1.
References
github.com/meetecho/janus-gateway/blob/v0.10.0/janus.c
github.com/meetecho/janus-gateway/pull/2214
github.com/merrychap/poc_exploits/tree/master/janus-webrtc/CVE-2020-13899
nvd.nist.gov/vuln/detail/CVE-2020-13899
github.com/merrychap/CVEs/tree/master/CVE-2020-13899
github.com/advisories/GHSA-x6c3-mvjq-f4mg
security-tracker.debian.org/tracker/CVE-2020-13899
ubuntu.com/security/CVE-2020-13899
cve.org/CVERecord?id=CVE-2020-13899