Medium
Security advisory
A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious user could use this flaw leading to disclosure of sensitive information.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-3947
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:11 UTC · Revision 1
Source evidence
A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious user could use this flaw leading to disclosure of sensitive information.
osv:CVE-2021-3947
Complete source record
{
"id": "822818d26c08ae8f285bcf190b7d673832985ecb60a1789b447fe5e36ade9ea8",
"url": "https://osv.dev/vulnerability/CVE-2021-3947",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-3947",
"summary": "A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious user could use this flaw leading to disclosure of sensitive information.",
"evidence": "osv:CVE-2021-3947",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2021-3947",
"aliases": [
"CVE-2021-3947"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/qemu/qemu",
"type": "GIT",
"events": [
{
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{
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{
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},
{
"last_affected": "67f9968ce3f0847ffddb6ee2837a3641acd92abf"
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"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "6.0.0"
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{
"last_affected": "6.1.0"
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],
"source": "CPE_RANGE"
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{
"cpe": "cpe:2.3:a:qemu:qemu:6.2.0:rc0:*:*:*:*:*:*",
"range": [
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{
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}
],
"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:qemu:qemu:6.2.0:rc1:*:*:*:*:*:*",
"range": [
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{
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"database_specific": {
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{
"cpe": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
"range": [
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"introduced": "6.0.0"
},
{
"last_affected": "6.1.0"
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],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:qemu:qemu:6.2.0:rc0:*:*:*:*:*:*",
"range": [
{
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},
{
"last_affected": "6.2.0-rc0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:qemu:qemu:6.2.0:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "6.2.0-rc1"
},
{
"last_affected": "6.2.0-rc1"
}
],
"source": "CPE_STRING"
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],
"versions": [
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"v6.1.0",
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"v6.1.0-rc2",
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],
"database_specific": {
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}
}
],
"modified": "2026-10-24T10:30:25.591831106Z",
"provider": "osv",
"references": [
"https://security.gentoo.org/glsa/202208-27",
"https://security.netapp.com/advisory/ntap-20220318-0003/",
"https://bugzilla.redhat.com/show_bug.cgi?id=2021869"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2021-3947",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 431392,
"published_at": "2022-02-18T18:15:09.75+00:00"
}