Vulnerability Description
lwIP 2.0.0 through 2.2.1 built with the SNMP agent contains an out-of-bounds read vulnerability in snmp_pbuf_stream_writeto() that bounds copies by pbuf->len instead of remaining bytes. Remote unauthenticated attackers knowing the read community can send fragmented SNMP requests to receive adjacent receive-buffer or pool memory echoed in responses.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/lwip-tcpip/lwip
- https://github.com/lwip-tcpip/lwip/blob/77dcd25a72509eb83f72b033d219b1d40cd8eb95
- https://github.com/lwip-tcpip/lwip/commit/e98415014aca66ef0daefded8020763b9279a3
- https://www.vulncheck.com/advisories/lwip-2.0.0-through-2.2.1-snmp-agent-out-of-
FAQ
What is CVE-2026-119053?
CVE-2026-119053 is a vulnerability with a CVSS score of 5.3 (MEDIUM). lwIP 2.0.0 through 2.2.1 built with the SNMP agent contains an out-of-bounds read vulnerability in snmp_pbuf_stream_writeto() that bounds copies by pbuf->len instead of remaining bytes. Remote unauthe...
How severe is CVE-2026-119053?
CVE-2026-119053 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-119053?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.