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CVE-2026-119053

CVE-2026-119053 · lwIP 2.0.0 through 2.2.1 SNMP Agent Out-of-Bounds Read via snmp_pbuf_stream_writeto()

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 6.9 · Medium · EPSS 0.5%

Published
Updated

Stack: system

Affected products and versions

  • lwip

    Versions
    • ≥ 2.0.0, ≤ 2.2.1: Affected (custom)

    No fix published

  • lwip Debian:12

    Versions
    • 2.1.3+dfsg1-2
    • 2.1.3+dfsg1-3
    • 2.1.3+dfsg1-4
    • 2.2.0+dfsg1-1
    • 2.2.0+dfsg1-2
    • 2.2.0+dfsg1-3
    • 2.2.0+dfsg1-4
    • 2.2.0+dfsg1-5
    • 2.2.0+dfsg1-6
    • 2.2.0+dfsg1-6.1
    • 2.2.0+dfsg1-6.1~exp1
    • 2.2.0+dfsg1-7
    • 2.2.0+dfsg1-8
    • 2.2.0+dfsg1-9
    • 2.2.1+dfsg1-1
    • 2.2.1+dfsg1-2
    • 2.2.1+dfsg1-3
    • 2.2.1+dfsg1-4
    • 2.2.1+dfsg1-5
    • 2.2.1+dfsg1-6
    • 2.2.1+dfsg1-7
    • 2.2.1+dfsg1-8
    • 2.2.1+dfsg1-9
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • lwip Debian:13

    Versions
    • 2.2.1+dfsg1-1
    • 2.2.1+dfsg1-1+deb13u1
    • 2.2.1+dfsg1-2
    • 2.2.1+dfsg1-3
    • 2.2.1+dfsg1-4
    • 2.2.1+dfsg1-5
    • 2.2.1+dfsg1-6
    • 2.2.1+dfsg1-7
    • 2.2.1+dfsg1-8
    • 2.2.1+dfsg1-9
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • lwip Debian:14

    Versions
    • 2.2.1+dfsg1-1
    • 2.2.1+dfsg1-2
    • 2.2.1+dfsg1-3
    • 2.2.1+dfsg1-4
    • 2.2.1+dfsg1-5
    • 2.2.1+dfsg1-6
    • 2.2.1+dfsg1-7
    • 2.2.1+dfsg1-8
    • 2.2.1+dfsg1-9
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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