CVE-2026-8836CRITICAL 9.8EPSS p53.9%
CVE-2026-8836CVE-2026-8836
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.
Scoring
| CVSS 3.1 | 9.8 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 0.86% probability of exploitation · percentile 53.9% · 2026-06-19T12:03:05Z |
| Published | 2026-05-18 |
| Last modified | 2026-05-18 |
Underlying weaknesses· 2
References
- https://cgit.git.savannah.gnu.org/cgit/lwip.git/commit/?id=0c957ec03054eb6c8205e9c9d1d05d90ada3898c
- https://github.com/lwip-tcpip/lwip/commit/0c957ec03054eb6c8205e9c9d1d05d90ada3898c
- https://savannah.nongnu.org/bugs/?68194
- https://vuldb.com/submit/829798
- https://vuldb.com/vuln/364474
- https://vuldb.com/vuln/364474/cti
2
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Improper Restriction of Operations within the Bounds of a Memory Buffercwe-119 | 0% | live |
| Weakness | Stack-based Buffer Overflowcwe-121 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.