CriticalFix available
mbedtls — security advisory
An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. There is a potential heap-based buffer overflow and heap-based buffer over-read in DTLS if MBEDTLS_SSL_DTLS_CONNECTION_ID is enabled and MBEDTLS_SSL_CID_IN_LEN_MAX > 2 * MBEDTLS_SSL_CID_OUT_LEN_MAX.
- Products
- mbedtls
- Affected versions
- Not specified
- Fixed versions
- 2.28.2-1
- CVEs
- CVE-2022-46393
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 15:03 UTC · Revision 1
Source evidence
An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. There is a potential heap-based buffer overflow and heap-based buffer over-read in DTLS if MBEDTLS_SSL_DTLS_CONNECTION_ID is enabled and MBEDTLS_SSL_CID_IN_LEN_MAX > 2 * MBEDTLS_SSL_CID_OUT_LEN_MAX.
osv:DEBIAN-CVE-2022-46393
mbedtls
Fixed versions: 2.28.2-1
mbedtls
Fixed versions: 2.28.2-1
mbedtls
Fixed versions: 2.28.2-1
Complete source record
{
"id": "16df212a616acd0dab02f5e4a0ea6a441e6885806d202f7f05a0abea2fdd1520",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2022-46393",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2022-46393",
"summary": "An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. There is a potential heap-based buffer overflow and heap-based buffer over-read in DTLS if MBEDTLS_SSL_DTLS_CONNECTION_ID is enabled and MBEDTLS_SSL_CID_IN_LEN_MAX > 2 * MBEDTLS_SSL_CID_OUT_LEN_MAX.",
"evidence": "osv:DEBIAN-CVE-2022-46393",
"products": [
{
"name": {
"value": "mbedtls",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.28.2-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "mbedtls",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.28.2-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "mbedtls",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.28.2-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "critical",
"structured": {
"id": "DEBIAN-CVE-2022-46393",
"aliases": [
"DEBIAN-CVE-2022-46393"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.28.2-1"
}
]
}
],
"package": {
"name": "mbedtls",
"purl": "pkg:deb/debian/mbedtls?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-46393.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.28.2-1"
}
]
}
],
"package": {
"name": "mbedtls",
"purl": "pkg:deb/debian/mbedtls?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-46393.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.28.2-1"
}
]
}
],
"package": {
"name": "mbedtls",
"purl": "pkg:deb/debian/mbedtls?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-46393.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-15T08:02:46.375524374Z",
"provider": "osv",
"upstream": [
"CVE-2022-46393"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2022-46393"
]
},
"related_cves": [
{
"value": "CVE-2022-46393",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 324194,
"published_at": "2022-12-15T23:15:10.57+00:00"
}