Critical
biosig — security advisory
An out-of-bounds read vulnerability exists in the Nex parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted .nex file can lead to an information leak. An attacker can provide a malicious file to trigger this vulnerability.
- Products
- biosig
- Affected versions
- 2.1.2-4, 2.1.2-4build1, 2.1.2-4build2, 2.3.3-1, 2.3.3-1build1, 2.3.3-1build2, 2.3.3-1ubuntu0.1~esm1, 2.5.0-1build2, 2.5.2-1, 2.5.2-1build1, 2.5.2-2, 2.6.0-1, 2.6.0-1build1, 2.6.0-1ubuntu1, 2.6.0-1ubuntu1+esm1, 2.6.1-1build3, 3.9.0-1, 3.9.0-1build1, 3.9.0-1build2, 3.9.0-1build3, 3.9.0-1ubuntu0.1~esm1, 3.9.5-1, 3.9.5-1build1
- Fixed versions
- Not specified
- CVEs
- CVE-2025-52461
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:33 UTC · Revision 1
Source evidence
An out-of-bounds read vulnerability exists in the Nex parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted .nex file can lead to an information leak. An attacker can provide a malicious file to trigger this vulnerability.
osv:UBUNTU-CVE-2025-52461
biosig
Fixed versions: Not specified
biosig
Fixed versions: Not specified
biosig
Fixed versions: Not specified
biosig
Fixed versions: Not specified
biosig
Fixed versions: Not specified
Complete source record
{
"id": "820d58afb49044cbc3f10e4e6e247944f040dc137bc4111558341b48e64386c5",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-52461",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2025-52461",
"summary": "An out-of-bounds read vulnerability exists in the Nex parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted .nex file can lead to an information leak. An attacker can provide a malicious file to trigger this vulnerability.",
"evidence": "osv:UBUNTU-CVE-2025-52461",
"products": [
{
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},
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"value": "2.1.2-4",
"evidence": "/affected/0/versions"
},
{
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"evidence": "/affected/0/versions"
},
{
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"evidence": "/affected/0/versions"
},
{
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{
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{
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{
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{
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{
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{
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{
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{
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"severity": "critical",
"structured": {
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"aliases": [
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"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
},
{
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"database_specific": {
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},
"ecosystem_specific": {
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},
{
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},
{
"binary_name": "octave-biosig",
"binary_version": "2.3.3-1ubuntu0.1~esm1"
},
{
"binary_name": "python3-biosig",
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},
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"2.5.2-1",
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"2.6.0-1ubuntu1",
"2.6.0-1ubuntu1+esm1"
],
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},
"ecosystem_specific": {
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{
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},
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],
"modified": "2026-10-17T12:57:07.250740394Z",
"provider": "osv",
"upstream": [
"CVE-2025-52461"
],
"references": [
"https://ubuntu.com/security/CVE-2025-52461",
"https://www.cve.org/CVERecord?id=CVE-2025-52461",
"https://sourceforge.net/p/biosig/mailman/message/59224259/",
"https://talosintelligence.com/vulnerability_reports/TALOS-2025-2238"
]
},
"related_cves": [
{
"value": "CVE-2025-52461",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 356751,
"published_at": "2025-08-25T14:15:00+00:00"
}