CVE-2026-112062
MEDIUM
CVSS 5.9
Published: 2026-10-18
Modified: 2026-10-19
Tenable Plugin
Checking the public Tenable catalog…
Threat Intelligence Pending
IOCs, MITRE ATT&CK techniques, and attack chain data are being generated. Refresh in a few seconds.
Description
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.
Quick Facts
| CVE ID | CVE-2026-112062 |
| CVSS Score | 5.9 |
| Vector | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H |
| Published | 2026-10-18 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://github.com/lwip-tcpip/lwip/blob/STABLE-2_2_1_RELEASE…
- https://github.com/lwip-tcpip/lwip/commit/ab2f69c7d8980c01cd…
- https://hackmd.io/@haindpwn/lwip-mdns-search-result-domain-o…
- https://www.vulncheck.com/advisories/lwip-through-2.2.1-stac…
- https://hackmd.io/@haindpwn/cve-2026-112062-lwip-mdns-search…