Low
wolfssl — security advisory
Multiple constant-time implementations in wolfSSL before version 5.8.4 may be transformed into non-constant-time binary by LLVM optimizations, which can potentially result in observable timing discrepancies and lead to information disclosure through timing side-channel attacks.
- Products
- wolfssl
- Affected versions
- 5.5.4-2, 5.5.4-2+deb12u1, 5.5.4-2+deb12u2, 5.5.4-2+deb12u3, 5.5.4-2.1, 5.6.4-1, 5.6.4-2, 5.6.6-1, 5.6.6-1.1, 5.6.6-1.2, 5.6.6-1.3, 5.6.6-1.3~exp1, 5.7.0-0.1, 5.7.0-0.2, 5.7.0-0.3, 5.7.2-0.1, 5.7.2-0.1+deb13u1, 5.7.2-0.1+deb13u2, 5.7.2-0.2, 5.7.2-0.3, 5.7.2-0.4, 5.8.2-1, 5.8.2-1.1, 5.8.2-1.2, 5.8.4-1, 5.9.0-0.1, 5.9.0-0.2, 5.9.1-0.1, 5.9.2-1, 5.9.2-1.1, 5.9.2-1.2
- Fixed versions
- Not specified
- CVEs
- CVE-2025-13912
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 17:26 UTC · Revision 1
Source evidence
Multiple constant-time implementations in wolfSSL before version 5.8.4 may be transformed into non-constant-time binary by LLVM optimizations, which can potentially result in observable timing discrepancies and lead to information disclosure through timing side-channel attacks.
osv:DEBIAN-CVE-2025-13912
wolfssl
Fixed versions: Not specified
wolfssl
Fixed versions: Not specified
Complete source record
{
"id": "0dac0f6c9d5c982375f61aed79693c96ea1e0b7046f89c2e596b5385590fbf78",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2025-13912",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2025-13912",
"summary": "Multiple constant-time implementations in wolfSSL before version 5.8.4 may be transformed into non-constant-time binary by LLVM optimizations, which can potentially result in observable timing discrepancies and lead to information disclosure through timing side-channel attacks.",
"evidence": "osv:DEBIAN-CVE-2025-13912",
"products": [
{
"name": {
"value": "wolfssl",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.5.4-2",
"evidence": "/affected/0/versions"
},
{
"value": "5.5.4-2+deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "5.5.4-2+deb12u2",
"evidence": "/affected/0/versions"
},
{
"value": "5.5.4-2+deb12u3",
"evidence": "/affected/0/versions"
},
{
"value": "5.5.4-2.1",
"evidence": "/affected/0/versions"
},
{
"value": "5.6.4-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.6.4-2",
"evidence": "/affected/0/versions"
},
{
"value": "5.6.6-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.6.6-1.1",
"evidence": "/affected/0/versions"
},
{
"value": "5.6.6-1.2",
"evidence": "/affected/0/versions"
},
{
"value": "5.6.6-1.3",
"evidence": "/affected/0/versions"
},
{
"value": "5.6.6-1.3~exp1",
"evidence": "/affected/0/versions"
},
{
"value": "5.7.0-0.1",
"evidence": "/affected/0/versions"
},
{
"value": "5.7.0-0.2",
"evidence": "/affected/0/versions"
},
{
"value": "5.7.0-0.3",
"evidence": "/affected/0/versions"
},
{
"value": "5.7.2-0.1",
"evidence": "/affected/0/versions"
},
{
"value": "5.7.2-0.2",
"evidence": "/affected/0/versions"
},
{
"value": "5.7.2-0.3",
"evidence": "/affected/0/versions"
},
{
"value": "5.7.2-0.4",
"evidence": "/affected/0/versions"
},
{
"value": "5.8.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.8.2-1.1",
"evidence": "/affected/0/versions"
},
{
"value": "5.8.2-1.2",
"evidence": "/affected/0/versions"
},
{
"value": "5.8.4-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.9.0-0.1",
"evidence": "/affected/0/versions"
},
{
"value": "5.9.0-0.2",
"evidence": "/affected/0/versions"
},
{
"value": "5.9.1-0.1",
"evidence": "/affected/0/versions"
},
{
"value": "5.9.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.9.2-1.1",
"evidence": "/affected/0/versions"
},
{
"value": "5.9.2-1.2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "wolfssl",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.7.2-0.1",
"evidence": "/affected/1/versions"
},
{
"value": "5.7.2-0.1+deb13u1",
"evidence": "/affected/1/versions"
},
{
"value": "5.7.2-0.1+deb13u2",
"evidence": "/affected/1/versions"
},
{
"value": "5.7.2-0.2",
"evidence": "/affected/1/versions"
},
{
"value": "5.7.2-0.3",
"evidence": "/affected/1/versions"
},
{
"value": "5.7.2-0.4",
"evidence": "/affected/1/versions"
},
{
"value": "5.8.2-1",
"evidence": "/affected/1/versions"
},
{
"value": "5.8.2-1.1",
"evidence": "/affected/1/versions"
},
{
"value": "5.8.2-1.2",
"evidence": "/affected/1/versions"
},
{
"value": "5.8.4-1",
"evidence": "/affected/1/versions"
},
{
"value": "5.9.0-0.1",
"evidence": "/affected/1/versions"
},
{
"value": "5.9.0-0.2",
"evidence": "/affected/1/versions"
},
{
"value": "5.9.1-0.1",
"evidence": "/affected/1/versions"
},
{
"value": "5.9.2-1",
"evidence": "/affected/1/versions"
},
{
"value": "5.9.2-1.1",
"evidence": "/affected/1/versions"
},
{
"value": "5.9.2-1.2",
"evidence": "/affected/1/versions"
}
]
}
],
"severity": "low",
"structured": {
"id": "DEBIAN-CVE-2025-13912",
"aliases": [
"DEBIAN-CVE-2025-13912"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "wolfssl",
"purl": "pkg:deb/debian/wolfssl?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"5.5.4-2",
"5.5.4-2+deb12u1",
"5.5.4-2+deb12u2",
"5.5.4-2+deb12u3",
"5.5.4-2.1",
"5.6.4-1",
"5.6.4-2",
"5.6.6-1",
"5.6.6-1.1",
"5.6.6-1.2",
"5.6.6-1.3",
"5.6.6-1.3~exp1",
"5.7.0-0.1",
"5.7.0-0.2",
"5.7.0-0.3",
"5.7.2-0.1",
"5.7.2-0.2",
"5.7.2-0.3",
"5.7.2-0.4",
"5.8.2-1",
"5.8.2-1.1",
"5.8.2-1.2",
"5.8.4-1",
"5.9.0-0.1",
"5.9.0-0.2",
"5.9.1-0.1",
"5.9.2-1",
"5.9.2-1.1",
"5.9.2-1.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-13912.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "wolfssl",
"purl": "pkg:deb/debian/wolfssl?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"5.7.2-0.1",
"5.7.2-0.1+deb13u1",
"5.7.2-0.1+deb13u2",
"5.7.2-0.2",
"5.7.2-0.3",
"5.7.2-0.4",
"5.8.2-1",
"5.8.2-1.1",
"5.8.2-1.2",
"5.8.4-1",
"5.9.0-0.1",
"5.9.0-0.2",
"5.9.1-0.1",
"5.9.2-1",
"5.9.2-1.1",
"5.9.2-1.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-13912.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-15T10:01:45.190865065Z",
"provider": "osv",
"upstream": [
"CVE-2025-13912"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2025-13912"
]
},
"related_cves": [
{
"value": "CVE-2025-13912",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 330363,
"published_at": "2025-12-11T18:16:19.067+00:00"
}