Medium
Security advisory
The C software implementation of RSA in wolfSSL (formerly CyaSSL) before 3.9.10 makes it easier for local users to discover RSA keys by leveraging cache-bank hit differences.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-7439
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:31 UTC · Revision 1
Source evidence
The C software implementation of RSA in wolfSSL (formerly CyaSSL) before 3.9.10 makes it easier for local users to discover RSA keys by leveraging cache-bank hit differences.
osv:CVE-2016-7439
Complete source record
{
"id": "a014c44a522bf8b7fe886123ff3f86919f3e1ee6ba9c4f3eae7c7f9ccc9967aa",
"url": "https://osv.dev/vulnerability/CVE-2016-7439",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-7439",
"summary": "The C software implementation of RSA in wolfSSL (formerly CyaSSL) before 3.9.10 makes it easier for local users to discover RSA keys by leveraging cache-bank hit differences.",
"evidence": "osv:CVE-2016-7439",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2016-7439",
"aliases": [
"CVE-2016-7439"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/wolfssl/wolfssl",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "67d607324a73b9eb85d10533e15724c8bbe5934e"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "3.9.8"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"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-2016-7439.json"
}
}
],
"modified": "2026-10-24T10:30:19.606210872Z",
"provider": "osv",
"references": [
"https://wolfssl.com/wolfSSL/Blog/Entries/2016/9/26_wolfSSL_3.9.10_Vulnerability_Fixes.html"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2016-7439",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 430062,
"published_at": "2016-12-13T16:59:08.877+00:00"
}