VULNERABILITY INTELLIGENCE
CVE-2025-11678
EPSS probability0.29%
CISA KEVNot currently listed
Published2025-10-20
Last modified2026-10-08
Description
Stack-based Buffer Overflow in lws_adns_parse_label in warmcat libwebsockets allows, when the LWS_WITH_SYS_ASYNC_DNS flag is enabled during compilation, to overflow the label_stack, when the attacker is able to sniff a DNS request in order to craft a response with a matching id containing a label longer than the maximum.
Weakness classification
- prodsec@nozominetworks.com: CWE-121