Vulnerability in Tinysvcmdns_project Tinysvcmdns

CVE-2019-9747

In tinysvcmdns through 2018-01-16, a maliciously crafted mDNS (Multicast DNS) packet triggers an infinite loop while parsing an mDNS query. When mDNS compressed labels point to each other, the function uncompress_nlabel goes into an infini…

EPSS: 0.014 (68.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-9747?
CVE-2019-9747 is a high-severity vulnerability in Tinysvcmdns_project Tinysvcmdns, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2019-03-13.
How severe is CVE-2019-9747?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2019-9747 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.