Medium
Security advisory
epan/dissectors/packet-ncp2222.inc in the NDS dissector in Wireshark 1.12.x before 1.12.13 does not properly maintain a ptvc data structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted packet.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-6504
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:26 UTC · Revision 1
Source evidence
epan/dissectors/packet-ncp2222.inc in the NDS dissector in Wireshark 1.12.x before 1.12.13 does not properly maintain a ptvc data structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted packet.
osv:CVE-2016-6504
Complete source record
{
"id": "3b99fda94710782d36ea37bb49baa45dc422210be7f1bf35493734411f177433",
"url": "https://osv.dev/vulnerability/CVE-2016-6504",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-6504",
"summary": "epan/dissectors/packet-ncp2222.inc in the NDS dissector in Wireshark 1.12.x before 1.12.13 does not properly maintain a ptvc data structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted packet.",
"evidence": "osv:CVE-2016-6504",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2016-6504",
"aliases": [
"CVE-2016-6504"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/wireshark/wireshark",
"type": "GIT",
"events": [
{
"introduced": "4fab41a1f0e14e9124ea6a61e7bae42e95599495"
},
{
"last_affected": "2f634e877a4e876803d035f2c118c25478130144"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.0"
},
{
"last_affected": "1.12.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.1"
},
{
"last_affected": "1.12.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.2"
},
{
"last_affected": "1.12.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.3"
},
{
"last_affected": "1.12.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.4"
},
{
"last_affected": "1.12.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.5"
},
{
"last_affected": "1.12.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.6:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.6"
},
{
"last_affected": "1.12.6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.7"
},
{
"last_affected": "1.12.7"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.8:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.8"
},
{
"last_affected": "1.12.8"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.9:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.9"
},
{
"last_affected": "1.12.9"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.10:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.10"
},
{
"last_affected": "1.12.10"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.11:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.11"
},
{
"last_affected": "1.12.11"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.12:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.12"
},
{
"last_affected": "1.12.12"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"1.12.0",
"1.12.1",
"1.12.10",
"1.12.11",
"1.12.12",
"1.12.2",
"1.12.3",
"1.12.4",
"1.12.5",
"1.12.6",
"1.12.7",
"1.12.8",
"1.12.9",
"wireshark-1.12.12",
"v1.12.12",
"v1.12.12rc0",
"wireshark-1.12.11",
"v1.12.11",
"v1.12.11rc0",
"wireshark-1.12.10",
"v1.12.10",
"v1.12.10rc0",
"wireshark-1.12.9",
"v1.12.9",
"v1.12.9rc0",
"wireshark-1.12.8",
"v1.12.8",
"v1.12.8rc0",
"wireshark-1.12.7",
"v1.12.7",
"v1.12.7rc0",
"wireshark-1.12.6",
"v1.12.6",
"v1.12.6rc0",
"wireshark-1.12.5",
"v1.12.5",
"v1.12.5rc0",
"wireshark-1.12.4",
"v1.12.4",
"v1.12.4rc0",
"wireshark-1.12.3",
"v1.12.3",
"wireshark-1.12.1",
"v1.12.1",
"v1.12.3rc0",
"wireshark-1.12.2",
"v1.12.2",
"v1.12.2rc0",
"v1.12.0rc0",
"wireshark-1.12.0",
"v1.12.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-6504.json"
}
},
{
"ranges": [
{
"repo": "https://gitlab.com/wireshark/wireshark",
"type": "GIT",
"events": [
{
"introduced": "4fab41a1f0e14e9124ea6a61e7bae42e95599495"
},
{
"last_affected": "2f634e877a4e876803d035f2c118c25478130144"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.0"
},
{
"last_affected": "1.12.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.1"
},
{
"last_affected": "1.12.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.2"
},
{
"last_affected": "1.12.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.3"
},
{
"last_affected": "1.12.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.4"
},
{
"last_affected": "1.12.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.5"
},
{
"last_affected": "1.12.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.6:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.6"
},
{
"last_affected": "1.12.6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.7"
},
{
"last_affected": "1.12.7"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.8:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.8"
},
{
"last_affected": "1.12.8"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.9:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.9"
},
{
"last_affected": "1.12.9"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.10:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.10"
},
{
"last_affected": "1.12.10"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.11:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.11"
},
{
"last_affected": "1.12.11"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:wireshark:wireshark:1.12.12:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.12.12"
},
{
"last_affected": "1.12.12"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"1.12.0",
"1.12.1",
"1.12.10",
"1.12.11",
"1.12.12",
"1.12.2",
"1.12.3",
"1.12.4",
"1.12.5",
"1.12.6",
"1.12.7",
"1.12.8",
"1.12.9",
"wireshark-1.12.12",
"v1.12.12",
"v1.12.12rc0",
"wireshark-1.12.11",
"v1.12.11",
"v1.12.11rc0",
"wireshark-1.12.10",
"v1.12.10",
"v1.12.10rc0",
"wireshark-1.12.9",
"v1.12.9",
"v1.12.9rc0",
"wireshark-1.12.8",
"v1.12.8",
"v1.12.8rc0",
"wireshark-1.12.7",
"v1.12.7",
"v1.12.7rc0",
"wireshark-1.12.6",
"v1.12.6",
"v1.12.6rc0",
"wireshark-1.12.5",
"v1.12.5",
"v1.12.5rc0",
"wireshark-1.12.4",
"v1.12.4",
"v1.12.4rc0",
"wireshark-1.12.3",
"v1.12.3",
"wireshark-1.12.1",
"v1.12.1",
"v1.12.3rc0",
"wireshark-1.12.2",
"v1.12.2",
"v1.12.2rc0",
"v1.12.0rc0",
"wireshark-1.12.0",
"v1.12.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-6504.json"
}
}
],
"modified": "2026-10-24T10:30:53.284572188Z",
"provider": "osv",
"references": [
"https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=9eacbb4d48df647648127b9258f9e5aeeb0c7d99",
"https://www.exploit-db.com/exploits/40194/",
"https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=12576"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2016-6504",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 437887,
"published_at": "2016-08-06T23:59:01.477+00:00"
}