CVE-2026-112062 (GCVE-0-2026-112062)

Vulnerability from cvelistv5 – Published: 2026-10-18 12:19 – Updated: 2026-10-18 12:19
VLAI
Title
lwIP through 2.2.1 Stack Out-of-Bounds Write via mDNS Search Response Handler
Summary
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.
Severity
6 (Medium)
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
5.9 (Medium)
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6476 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
lwIP lwIP Affected: 0 , ≤ 2.2.1 (custom)
    cpe:2.3:a:lwip_project:lwip:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-17 18:49
Credits
HaiND from the Post and Telecommunication Institute of Technology
Show details on NVD website
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}



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