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2 vulnerabilities found for lwIP by lwIP
CVE-2026-112062 (GCVE-0-2026-112062)
Vulnerability from nvd – Published: 2026-10-18 12:19 – Updated: 2026-10-18 12:19
VLAI
EPSS
VEX
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
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://hackmd.io/@haindpwn/lwip-mdns-search-resu… | third-party-advisory |
| https://github.com/lwip-tcpip/lwip/commit/ab2f69c… | patch |
| https://github.com/lwip-tcpip/lwip/blob/STABLE-2_… | technical-description |
| https://www.vulncheck.com/advisories/lwip-through… | third-party-advisory |
Impacted products
Date Public
2026-10-17 18:49
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CVE-2026-112062 (GCVE-0-2026-112062)
Vulnerability from cvelistv5 – Published: 2026-10-18 12:19 – Updated: 2026-10-18 12:19
VLAI
EPSS
VEX
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
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://hackmd.io/@haindpwn/lwip-mdns-search-resu… | third-party-advisory |
| https://github.com/lwip-tcpip/lwip/commit/ab2f69c… | patch |
| https://github.com/lwip-tcpip/lwip/blob/STABLE-2_… | technical-description |
| https://www.vulncheck.com/advisories/lwip-through… | third-party-advisory |
Impacted products
Date Public
2026-10-17 18:49
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