Medium
Security advisory
An issue was discovered in the DTLS handshake implementation in wolfSSL before 4.5.0. Clear DTLS application_data messages in epoch 0 do not produce an out-of-order error. Instead, these messages are returned to the application.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-24585
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 11:06 UTC · Revision 1
Source evidence
An issue was discovered in the DTLS handshake implementation in wolfSSL before 4.5.0. Clear DTLS application_data messages in epoch 0 do not produce an out-of-order error. Instead, these messages are returned to the application.
osv:CVE-2020-24585
Complete source record
{
"id": "019802cdfc7beacca43988884a16bf9e8307af6fffbb46281edf534f9fa30838",
"url": "https://osv.dev/vulnerability/CVE-2020-24585",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-24585",
"summary": "An issue was discovered in the DTLS handshake implementation in wolfSSL before 4.5.0. Clear DTLS application_data messages in epoch 0 do not produce an out-of-order error. Instead, these messages are returned to the application.",
"evidence": "osv:CVE-2020-24585",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-24585",
"aliases": [
"CVE-2020-24585"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/wolfssl/wolfssl",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "0fa5af9929ce2ee99e8789996a3048f41a99830e"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "4.5.0"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "0fa5af9929ce2ee99e8789996a3048f41a99830e"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v4.5.0-stable"
}
]
}
}
],
"versions": [
"v4.4.0-stable",
"v4.3.0-stable",
"v4.2.0c",
"v4.2.0-stable",
"v4.1.0-stable",
"v4.0.0-stable",
"list",
"v3.15.7-stable",
"v3.15.6",
"v3.15.5a",
"v3.15.5-stable",
"WCv4-rng-stable",
"v3.15.3-stable",
"l",
"v3.15.0-stable",
"v3.14.4",
"v3.14.2",
"v3.14.0b",
"v3.14.0a",
"v3.14.0-stable",
"v3.13.3",
"v3.13.2",
"v3.13.0-stable",
"v3.12.2-stable",
"v3.12.0-stable",
"v3.11.1-tls13-beta",
"v3.11.0-stable",
"v3.10.3",
"v3.10.2-stable",
"v3.10.0a",
"v3.10.0-stable",
"v3.9.10b",
"v3.9.10-stable",
"v3.9.8",
"v3.9.6w",
"v3.9.6",
"v3.9.1",
"v3.9.0",
"v3.8.0",
"v3.7.3",
"v3.7.1",
"v3.7.0",
"v3.6.9",
"v3.6.8",
"v3.4.6",
"v3.4.2",
"v3.4.0",
"v3.3.3",
"v3.3.0",
"v3.2.6",
"v3.2.4",
"v3.2.0",
"v2.9.4",
"v2.9.2",
"v2.9.1",
"v0.5",
"v2.9.0",
"v2.8.6",
"v2.8.5a",
"v2.8.5",
"v2.8.4",
"v2.8.3",
"v2.8.2",
"v2.8.0",
"v2.7.2",
"v2.7.0",
"v2.6.2",
"v2.6.0",
"v2.4.7",
"v2.4.6",
"v2.4.2",
"v2.0.8",
"v2.0.6",
"v2.0.3",
"v2.0.2",
"v2.0rc3",
"v2.0rc2b",
"v2.0rc2",
"v2.0rc1",
"v1.9.0",
"v1.8.8.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-24585.json"
}
}
],
"modified": "2026-10-20T10:52:51.610824870Z",
"provider": "osv",
"references": [
"https://github.com/wolfSSL/wolfssl/pull/3219",
"https://github.com/wolfSSL/wolfssl/releases/tag/v4.5.0-stable"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2020-24585",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 383964,
"published_at": "2020-08-21T14:15:11.137+00:00"
}