Published Aug 24, 2026Sources checked Nov 11, 2026
7.3HIGHCVSS out of 10
What this means
Review the available evidence
CVE-2026-78161 and is rated High severity with a CVSS score of 7.3. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
CISA KEVNot listedBased on the latest collected catalog
EPSS0.4%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview
What is CVE-2026-78161?
A vulnerability was found in warmcat libwebsockets 4.5.0. Impacted is the function report_raw_cbor of the file lib/misc/lecp.c of the component LECP CBOR Recording.
The manipulation results in out-of-bounds write. The attack can be launched remotely.
The exploit has been made public and could be used. The patch is identified as 1d44554a1bb262db63ff4e240152a9deecd99054.
It is best practice to apply a patch to resolve this issue.