Medium
wireshark — security advisory
FC-SWILS protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
- Products
- wireshark
- Affected versions
- 1.10.2-1, 1.10.3-1, 1.10.5-1ubuntu1, 1.10.5-2, 1.10.6-1, 1.12.1+g01b65bf-4+deb8u11ubuntu0.14.04.1, 1.12.7+g7fc8978-1, 1.12.8+g5b6e543-2, 2.0.1+g59ea380-3build1, 2.0.2+ga16e22e-1, 2.2.6+g32dac6a-2ubuntu0.16.04, 2.4.2-1, 2.4.3-1, 2.4.4-1, 2.4.5-1, 2.6.10-1~ubuntu14.04.0~esm1, 2.6.10-1~ubuntu14.04.0~esm2, 2.6.10-1~ubuntu14.04.0~esm3, 2.6.10-1~ubuntu16.04.0, 2.6.10-1~ubuntu16.04.0+esm1, 2.6.10-1~ubuntu16.04.0+esm2, 2.6.10-1~ubuntu18.04.0, 2.6.10-1~ubuntu18.04.0+esm1, 2.6.10-1~ubuntu18.04.0+esm2, 2.6.3-1~ubuntu14.04.1, 2.6.3-1~ubuntu16.04.1, 2.6.3-1~ubuntu18.04.1, 2.6.4-2~ubuntu14.04.1, 2.6.4-2~ubuntu16.04.0, 2.6.4-2~ubuntu18.04.0, 2.6.5-1~ubuntu14.04.1, 2.6.5-1~ubuntu16.04.0, 2.6.5-1~ubuntu18.04.0, 2.6.6-1~ubuntu14.04.0, 2.6.6-1~ubuntu16.04.0, 2.6.6-1~ubuntu18.04.0, 2.6.8-1~ubuntu14.04.0~esm1, 2.6.8-1~ubuntu16.04.0, 2.6.8-1~ubuntu18.04.0, 3.0.5-1, 3.0.7-1, 3.2.1-1, 3.2.2-1, 3.2.3-1, 3.2.3-1ubuntu0.1~esm1, 3.2.3-1ubuntu0.1~esm2, 3.4.7-1~exp1, 3.4.9-1, 3.6.2-1ubuntu1, 3.6.2-2, 3.6.2-2ubuntu0.1~esm1, 4.0.10-1, 4.0.11-1, 4.0.8-1, 4.2.0-1, 4.2.2-1, 4.2.2-1.1build1, 4.2.2-1.1build2, 4.2.2-1.1build3, 4.4.5-1, 4.4.6-2, 4.4.6-2build1, 4.4.7-1, 4.6.0-1, 4.6.1-2, 4.6.2-3, 4.6.3-1, 4.6.4-1, 4.6.6-1, 4.6.6-2, 4.6.6-2build1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-5406
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:45 UTC · Revision 1
Source evidence
FC-SWILS protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
osv:UBUNTU-CVE-2026-5406
wireshark
Fixed versions: Not specified
wireshark
Fixed versions: Not specified
wireshark
Fixed versions: Not specified
wireshark
Fixed versions: Not specified
wireshark
Fixed versions: Not specified
wireshark
Fixed versions: Not specified
wireshark
Fixed versions: Not specified
wireshark
Fixed versions: Not specified
wireshark
Fixed versions: Not specified
Complete source record
{
"id": "e498bb193ee1ad64f60422fe0f136e6792b3b25fa50874cb5a849990d804ecf1",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-5406",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-5406",
"summary": "FC-SWILS protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service",
"evidence": "osv:UBUNTU-CVE-2026-5406",
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{
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{
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{
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{
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{
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},
{
"name": {
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"evidence": "/affected/2/package/name"
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"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.4.2-1",
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{
"value": "2.4.3-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.4.4-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.4.5-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.6.3-1~ubuntu18.04.1",
"evidence": "/affected/2/versions"
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{
"value": "2.6.4-2~ubuntu18.04.0",
"evidence": "/affected/2/versions"
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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},
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{
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"evidence": "/affected/4/versions"
},
{
"value": "3.4.9-1",
"evidence": "/affected/4/versions"
},
{
"value": "3.6.2-1ubuntu1",
"evidence": "/affected/4/versions"
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{
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{
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{
"value": "4.0.11-1",
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{
"value": "4.2.0-1",
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{
"value": "4.2.2-1",
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{
"value": "4.2.2-1.1build1",
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{
"value": "4.2.2-1.1build2",
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{
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{
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{
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{
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{
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{
"value": "4.6.6-2",
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{
"value": "4.6.6-2build1",
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{
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{
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{
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{
"value": "4.6.2-3",
"evidence": "/affected/8/versions"
},
{
"value": "4.6.3-1",
"evidence": "/affected/8/versions"
},
{
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]
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],
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"structured": {
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"aliases": [
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"metrics": [
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{
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{
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{
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},
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}
},
{
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],
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],
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},
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{
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},
{
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"binary_version": "2.6.10-1~ubuntu18.04.0+esm2"
},
{
"binary_name": "wireshark-gtk",
"binary_version": "2.6.10-1~ubuntu18.04.0+esm2"
},
{
"binary_name": "wireshark-qt",
"binary_version": "2.6.10-1~ubuntu18.04.0+esm2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "wireshark",
"purl": "pkg:deb/ubuntu/wireshark?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
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"3.0.7-1",
"3.2.1-1",
"3.2.2-1",
"3.2.3-1",
"3.2.3-1ubuntu0.1~esm1",
"3.2.3-1ubuntu0.1~esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5406.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libwireshark-data",
"binary_version": "3.2.3-1ubuntu0.1~esm2"
},
{
"binary_name": "libwireshark13",
"binary_version": "3.2.3-1ubuntu0.1~esm2"
},
{
"binary_name": "libwiretap10",
"binary_version": "3.2.3-1ubuntu0.1~esm2"
},
{
"binary_name": "libwsutil11",
"binary_version": "3.2.3-1ubuntu0.1~esm2"
},
{
"binary_name": "tshark",
"binary_version": "3.2.3-1ubuntu0.1~esm2"
},
{
"binary_name": "wireshark",
"binary_version": "3.2.3-1ubuntu0.1~esm2"
},
{
"binary_name": "wireshark-common",
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],
"modified": "2026-10-17T12:59:03.036515449Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2026-5406",
"https://www.cve.org/CVERecord?id=CVE-2026-5406"
]
},
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{
"value": "CVE-2026-5406",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 359238,
"published_at": "2026-04-30T07:16:00+00:00"
}