Security advisory
Clementine Music Player through 1.3.1 (when a GLib 2.0.0 DLL is used) is vulnerable to a Read Access Violation on Block Data Move, affecting the MP3 file parsing functionality at memcpy+0x265. The vulnerability is triggered when the user opens a crafted MP3 file or loads a remote stream URL that is mishandled by Clementine. Attackers could exploit this issue to cause a crash (DoS) of the clementine.exe process or achieve arbitrary code execution in the context of the current logged-in Windows user.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-40827
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:03 UTC · Revision 1
Source evidence
Clementine Music Player through 1.3.1 (when a GLib 2.0.0 DLL is used) is vulnerable to a Read Access Violation on Block Data Move, affecting the MP3 file parsing functionality at memcpy+0x265. The vulnerability is triggered when the user opens a crafted MP3 file or loads a remote stream URL that is mishandled by Clementine. Attackers could exploit this issue to cause a crash (DoS) of the clementine.exe process or achieve arbitrary code execution in the context of the current logged-in Windows user.
osv:CVE-2021-40827
Complete source record
{
"id": "09692937e62fbe1b72fd8ea1579bfc06716b12c58c84827be8f84abcad0c5e5e",
"url": "https://osv.dev/vulnerability/CVE-2021-40827",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-40827",
"summary": "Clementine Music Player through 1.3.1 (when a GLib 2.0.0 DLL is used) is vulnerable to a Read Access Violation on Block Data Move, affecting the MP3 file parsing functionality at memcpy+0x265. The vulnerability is triggered when the user opens a crafted MP3 file or loads a remote stream URL that is mishandled by Clementine. Attackers could exploit this issue to cause a crash (DoS) of the clementine.exe process or achieve arbitrary code execution in the context of the current logged-in Windows user.",
"evidence": "osv:CVE-2021-40827",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2021-40827",
"aliases": [
"CVE-2021-40827"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/clementine-player/clementine",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "2418b559a8325f1a27947c679bbd6b6bca395df5"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:clementine-player:clementine:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "1.3.1"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"1.3.1",
"1.3",
"1.3rc1",
"0.7.3"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-40827.json"
}
}
],
"modified": "2026-10-24T10:30:47.847380550Z",
"provider": "osv",
"references": [
"https://voidsec.com/advisories/cve-2021-40827/"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2021-40827",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 436625,
"published_at": "2021-12-15T07:15:07.227+00:00"
}