DEBIAN-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.
DEBIAN-CVE-2026-8836
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-8836
lwip
Source reference: /affected/0/package/name
- Affected versions
- 2.1.3+dfsg1-2
Source reference:
/affected/0/versions2.1.3+dfsg1-3Source reference:
/affected/0/versions2.1.3+dfsg1-4Source reference:
/affected/0/versions2.2.0+dfsg1-1Source reference:
/affected/0/versions2.2.0+dfsg1-2Source reference:
/affected/0/versions2.2.0+dfsg1-3Source reference:
/affected/0/versions2.2.0+dfsg1-4Source reference:
/affected/0/versions2.2.0+dfsg1-5Source reference:
/affected/0/versions2.2.0+dfsg1-6Source reference:
/affected/0/versions2.2.0+dfsg1-6.1Source reference:
/affected/0/versions2.2.0+dfsg1-6.1~exp1Source reference:
/affected/0/versions2.2.0+dfsg1-7Source reference:
/affected/0/versions2.2.0+dfsg1-8Source reference:
/affected/0/versions2.2.0+dfsg1-9Source reference:
/affected/0/versions2.2.1+dfsg1-1Source reference:
/affected/0/versions2.2.1+dfsg1-2Source reference:
/affected/0/versions2.2.1+dfsg1-3Source reference:
/affected/0/versions2.2.1+dfsg1-4Source reference:
/affected/0/versions2.2.1+dfsg1-5Source reference:
/affected/0/versions2.2.1+dfsg1-6Source reference:
/affected/0/versions2.2.1+dfsg1-7Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
lwip
Source reference: /affected/1/package/name
- Affected versions
- 2.2.1+dfsg1-1
Source reference:
/affected/1/versions - Fixed versions
- 2.2.1+dfsg1-1+deb13u1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
lwip
Source reference: /affected/2/package/name
- Affected versions
- 2.2.1+dfsg1-1
Source reference:
/affected/2/versions2.2.1+dfsg1-2Source reference:
/affected/2/versions2.2.1+dfsg1-3Source reference:
/affected/2/versions2.2.1+dfsg1-4Source reference:
/affected/2/versions - Fixed versions
- 2.2.1+dfsg1-5
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "lwip",
"purl": "pkg:deb/debian/lwip?arch=source&distro=bookworm",
"ecosystem": "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"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8836.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.1+dfsg1-1+deb13u1"
}
]
}
],
"package": {
"name": "lwip",
"purl": "pkg:deb/debian/lwip?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"2.2.1+dfsg1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8836.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.1+dfsg1-5"
}
]
}
],
"package": {
"name": "lwip",
"purl": "pkg:deb/debian/lwip?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2.2.1+dfsg1-1",
"2.2.1+dfsg1-2",
"2.2.1+dfsg1-3",
"2.2.1+dfsg1-4"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8836.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58559 · Revision 1
- Added to Heist Feed
- Publisher date