How severe is CVE-2020-13901?

CVE-2020-13901 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-13901 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13901?

CVE-2020-13901 affects Meetecho Janus. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-13901?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-13901 published?

CVE-2020-13901 was published on 2020-06-10 and last updated on 2026-06-17.

CVE-2020-13901

CVE-2020-13901 is a critical-severity vulnerability in Meetecho Janus with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Meetecho Janus
Published: 2020-06-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-13901?: 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.
How severe is CVE-2020-13901?: CVE-2020-13901 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-13901 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13901?: CVE-2020-13901 affects Meetecho Janus. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-13901?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-13901 published?: CVE-2020-13901 was published on 2020-06-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:meetecho:janus:*:*:*:*:*:*:*:*

More vulnerabilities in Meetecho Janus

CVE-2020-14034 — Critical (CVSS 9.8): An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_get_codec_from_pt in utils.c…
CVE-2020-14033 — 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…
CVE-2020-10574 — Critical (CVSS 9.8): An issue was discovered in Janus through 0.9.1. janus.c tries to use a string that doesn't actually exist during a…
CVE-2020-13900 — High (CVSS 7.5): An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_sdp_preparse in sdp.c has a…
CVE-2020-13899 — High (CVSS 7.5): An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_process_incoming_request in…
CVE-2020-13898 — High (CVSS 7.5): An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_sdp_process in sdp.c has a…

All CVEs affecting Meetecho Janus →

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