Medium severity · published Mar 18, 2021
CVE-2021-28681
Pion WebRTC before 3.0.15 didn't properly tear down the DTLS Connection when certificate verification failed
5.3
CVSS
0.7%
EPSS
No
On KEV
Description
Pion WebRTC before 3.0.15 didn't properly tear down the DTLS Connection when certificate verification failed. The PeerConnectionState was set to failed, but a user could ignore that and continue to use the PeerConnection. )A WebRTC implementation shouldn't allow the user to continue if verification has failed.)
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WE
Webrtc · Webrtc Project
before 3.0.15 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-28681
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-28681
Exploit
https://github.com/pion/webrtc/issues/1708
Third Party Advisory
https://github.com/pion/webrtc/security/advisories/GHSA-74xm-qj29-cq8p
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