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CVE-2026-119053

MediumCVSS 6.9 / 10
Published Oct 29, 2026·Last modified Oct 31, 2026
Affected Components(6)
lwip-tcpip/lwip
STABLE-2_1_0_RELEASE
lwip-tcpip/lwip
STABLE-2_1_0_RC1
lwip-tcpip/lwip
master_at_STABLE-2_0_0
1 / 2
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.

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Risk Scores
Base Score
6.9

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
2.7

Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.

EPSS
0.48%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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