CVE-2020-6078

7.5
HIGHCVSS v3.1 Base Score
3.15%
LOW RiskEPSS (87th percentile)

An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages in mdns_recv, the return value of the mdns_read_header function is not checked, leading to an uninitialized variable usage that eventually results in a null pointer dereference, leading to service crash. An attacker can send a series of mDNS messages to trigger this vulnerability.

Published: 3/24/2020
Modified: 6/17/2026
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Vulnerability Summary

CVSS v3 Score

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2 Score

5

AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS Score (Exploitation Probability)

3.15%LOW Exploitation Risk
87th percentile

This vulnerability has a 3.15% probability of being exploited in the next 30 days, ranking higher than 87% of all scored CVEs.

CWE Classification

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