CVE-2026-78161mediumCWE-119CWE-787

CVE-2026-78161: medium-severity vulnerability in warmcat libwebsockets

warmcat libwebsockets LECP CBOR Recording lecp.c report_raw_cbor out-of-bounds write

Published

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33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 6.9epss 0.4%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
warmcat · libwebsockets
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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