CRITICAL

CVE-2019-20786

CVSS v3

9.8

CRITICAL

EPSS Score

3.0 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

github.com/pion/dtlsGoall versions · fixed in 1.5.2

Full record on NVD

Description

handleIncomingPacket in conn.go in Pion DTLS before 1.5.2 lacks a check for application data with epoch 0, which allows remote attackers to inject arbitrary unencrypted data after handshake completion.

Technical details

Published: 2020-04-19

Frequently asked questions

What is CVE-2019-20786?

Is CVE-2019-20786 actively exploited?

Active exploitation of CVE-2019-20786 has not been confirmed. Its EPSS score was 3.0% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-20786?

CVE-2019-20786 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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