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CVE-2026-8836

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CVE-2026-8836

Published: May 18, 2026

Modified: May 23, 2026

PUBLISHED

CVSS v3.1

9.8

CRITICAL

Description

A vulnerability was found in lwIP up to 2.2.1. Affected is the function snmp_parse_inbound_frame of the file src/apps/snmp/snmp_msg.c of the component snmpv3 USM Handler. Performing a manipulation of the argument msgAuthenticationParameters results in stack-based buffer overflow. The attack may be initiated remotely. The patch is named 0c957ec03054eb6c8205e9c9d1d05d90ada3898c. It is suggested to install a patch to address this issue.

VendorProductVersions

n/a

lwIP

affected
2.1.0
affected
2.1.1
affected
2.1.2
affected
2.1.3
affected
2.2.0

+1 more versions

Weaknesses (CWE)

CWE-121
CWE-119

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:O/RC:C

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

VDB-364474 | CTI Indicators (IOB, IOC, IOA)
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