9.8

CVE-2019-20786: pion dtls Improper Authentication

CVSS: 9.8v3.1CriticalModified
AliasesGHSA-7gfg-6934-mqq2GO-2020-0038
Published 19-04-2020Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2019-20786 is a critical (CVSS 9.8) Improper Authentication vulnerability in pion dtls. EPSS estimates a 3.01% chance of exploitation in the next 30 days, higher than 87.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
3.01%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 19-04-2020
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

3.01%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

0.00 pp

From 3.01% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.01%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (usenix.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Github.com/pion1 product
  • dtls< 1.5.2
Pion1 product

2 vendors · 2 products

References

8 links