CVE-2026-112062 — lwIP through 2.2.1 Stack Out-of-Bounds Write via mDNS Search Response Handler
lwIP through 2.2.1 contains a stack out-of-bounds write vulnerability in mdns_handle_response that allows adjacent attackers to corrupt stack memory by sending mDNS responses wi…
Published: 2026-10-18 · CVSS: 6.0 · CVSS 4.0
lwIP through 2.2.1 contains a stack out-of-bounds write vulnerability in mdns_handle_response that allows adjacent attackers to corrupt stack memory by sending mDNS responses with invalid domain names. Attackers on the local link can send multicast PTR answers with oversized RDLENGTH or SRV answers with RDLENGTH below 6 during a service search, overflowing a 256-byte stack buffer and crashing the device.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7