CRITICALCVSS 9.8Vulnerability
CVE-2026-8836
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. Two separate issue reports were submitted to the project. Their processing was merged as a duplicate.
Properties
- severity
- CRITICAL
- cvss_severity
- CRITICAL
- cvss_score
- 9.8
- epss_score
- 0.01557
- retrieved_at
- 2026-10-05T02:30:02+00:00
- last_source
- FIRST EPSS
- score
- 9.8
- cve_id
- CVE-2026-8836
- cvss_vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- signal_observed_at
- 2026-09-11T17:55:57+00:00
- vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- published_at
- 2026-05-18T19:16:28.533
- last_modified
- 2026-08-22T09:16:53.713
- epss_percentile
- 0.7432
Related Entities (4)
ENRICHED_BY (1)
→[Source]FIRST EPSS
HAS_WEAKNESS (2)
→[Weakness]Stack-based Buffer Overflow
→[Weakness]Improper Restriction of Operations within the Bounds of a Memory Buffer
DESCRIBED_BY (1)
→[Source]NVD
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