Critical
Security advisory
An issue was discovered in libmodbus before 3.0.7 and 3.1.x before 3.1.5. There is an out-of-bounds read for the MODBUS_FC_WRITE_MULTIPLE_REGISTERS case, aka VD-1301.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-14463
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:35 UTC · Revision 1
Source evidence
An issue was discovered in libmodbus before 3.0.7 and 3.1.x before 3.1.5. There is an out-of-bounds read for the MODBUS_FC_WRITE_MULTIPLE_REGISTERS case, aka VD-1301.
osv:CVE-2019-14463
Complete source record
{
"id": "e903418a51c1a3ea9d4ede0c902a0af26ae94c1baacf65b6df5c1f49692e29e2",
"url": "https://osv.dev/vulnerability/CVE-2019-14463",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-14463",
"summary": "An issue was discovered in libmodbus before 3.0.7 and 3.1.x before 3.1.5. There is an out-of-bounds read for the MODBUS_FC_WRITE_MULTIPLE_REGISTERS case, aka VD-1301.",
"evidence": "osv:CVE-2019-14463",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2019-14463",
"aliases": [
"CVE-2019-14463"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/stephane/libmodbus",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "7098bed95c1b3c19922894351dce1febfe06dec5"
},
{
"introduced": "a66b1c1f6db1d64933c782e16fb37a861d2fddb6"
},
{
"fixed": "890e689b9e6a806e26d7072e142cf2b3bda62755"
},
{
"fixed": "5ccdf5ef79d742640355d1132fa9e2abc7fbaefc"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:libmodbus:libmodbus:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "3.0.7"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:libmodbus:libmodbus:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.1.0"
},
{
"fixed": "3.1.5"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "5ccdf5ef79d742640355d1132fa9e2abc7fbaefc"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"v3.1.4",
"v3.1.3",
"v3.1.2",
"v3.0.6",
"v3.0.5",
"v3.0.4",
"v3.0.3",
"v3.1.0",
"v3.0.2",
"v3.0.1",
"v3.0.0",
"v2.9.4",
"v2.9.3",
"v2.9.2",
"v2.9.1",
"v2.1.0",
"v1.2.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-14463.json",
"vanir_signatures": [
{
"id": "CVE-2019-14463-a09a4a45",
"digest": {
"length": 8355,
"function_hash": "323593532108721994701969131287860941397"
},
"source": "https://github.com/stephane/libmodbus/commit/5ccdf5ef79d742640355d1132fa9e2abc7fbaefc",
"target": {
"file": "src/modbus.c",
"function": "modbus_reply"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2019-14463-df7c1ff9",
"digest": {
"threshold": 0.9,
"line_hashes": [
"279407068311027367221353942970198111362",
"96805696654878289283400945749832764755",
"264315136239087958184637419332994110289",
"246930806917692553678028513742674422724",
"35012889513330199115050305978215585344",
"90122997212441459616915173969254259899",
"215679700694705208098697681226269763170",
"92971725741101217226280423154663327420",
"136676668559232837800794350595617926995",
"147375281705634079108180024146503777876",
"35761847310492483641475584380183528662",
"136615255643659512426378481080580633623"
]
},
"source": "https://github.com/stephane/libmodbus/commit/5ccdf5ef79d742640355d1132fa9e2abc7fbaefc",
"target": {
"file": "src/modbus.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:56:00Z"
}
}
],
"modified": "2026-10-20T13:56:00.217903743Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HAGHQFJTJCMYHW553OUWJ3YIJR6PJHB7/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PRAQZXGAZY6UGWZ6CD33QEFLL7AWW233/",
"https://libmodbus.org/2019/stable-and-development-releases/",
"https://lists.debian.org/debian-lts-announce/2021/11/msg00020.html",
"https://github.com/stephane/libmodbus/commit/5ccdf5ef79d742640355d1132fa9e2abc7fbaefc"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "29"
},
{
"last_affected": "29"
},
{
"introduced": "30"
},
{
"last_affected": "30"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2019-14463",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388397,
"published_at": "2019-07-31T23:15:11.013+00:00"
}