High
Security advisory
tftp.c in libslirp 4.1.0, as used in QEMU 4.2.0, does not prevent ..\ directory traversal on Windows.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-7211
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 09:22 UTC · Revision 1
Source evidence
tftp.c in libslirp 4.1.0, as used in QEMU 4.2.0, does not prevent ..\ directory traversal on Windows.
osv:CVE-2020-7211
Complete source record
{
"id": "503baaaac1848e8ea92ab7d89db156f6b888738ffceacf72071697d7daac0ea5",
"url": "https://osv.dev/vulnerability/CVE-2020-7211",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-7211",
"summary": "tftp.c in libslirp 4.1.0, as used in QEMU 4.2.0, does not prevent ..\\ directory traversal on Windows.",
"evidence": "osv:CVE-2020-7211",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-7211",
"aliases": [
"CVE-2020-7211"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/qemu/qemu",
"type": "GIT",
"events": [
{
"introduced": "b0ca999a43a22b38158a222233d3f5881648bb4f"
},
{
"last_affected": "b0ca999a43a22b38158a222233d3f5881648bb4f"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:qemu:qemu:4.2.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.2.0"
},
{
"last_affected": "4.2.0"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"4.2.0",
"v4.2.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7211.json"
}
},
{
"ranges": [
{
"repo": "https://github.com/spring-projects/spring-framework",
"type": "GIT",
"events": [
{
"introduced": "8d2fd1163309e659c7411b7e5557eddb912ec684"
},
{
"last_affected": "8d2fd1163309e659c7411b7e5557eddb912ec684"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:libslirp_project:libslirp:4.1.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.1.0"
},
{
"last_affected": "4.1.0"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"4.1.0",
"v4.1.0.RELEASE"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7211.json"
}
},
{
"ranges": [
{
"repo": "https://gitlab.com/qemu-project/qemu",
"type": "GIT",
"events": [
{
"introduced": "b0ca999a43a22b38158a222233d3f5881648bb4f"
},
{
"last_affected": "b0ca999a43a22b38158a222233d3f5881648bb4f"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:qemu:qemu:4.2.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.2.0"
},
{
"last_affected": "4.2.0"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"4.2.0",
"v4.2.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7211.json"
}
},
{
"ranges": [
{
"repo": "https://gitlab.freedesktop.org/slirp/libslirp",
"type": "GIT",
"events": [
{
"introduced": "6651ba26c4e94f64d6448a2db4991269ce553bd9"
},
{
"last_affected": "6651ba26c4e94f64d6448a2db4991269ce553bd9"
},
{
"fixed": "14ec36e107a8c9af7d0a80c3571fe39b291ff1d4"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:libslirp_project:libslirp:4.1.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.1.0"
},
{
"last_affected": "4.1.0"
}
],
"source": "CPE_STRING"
},
{
"range": [
{
"fixed": "14ec36e107a8c9af7d0a80c3571fe39b291ff1d4"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"4.1.0",
"v4.1.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7211.json",
"vanir_signatures": [
{
"id": "CVE-2020-7211-ac505295",
"digest": {
"length": 2682,
"function_hash": "120643303157668002325465674923733077484"
},
"source": "https://gitlab.freedesktop.org/slirp/libslirp@14ec36e107a8c9af7d0a80c3571fe39b291ff1d4",
"target": {
"file": "src/tftp.c",
"function": "tftp_handle_rrq"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2020-7211-ad897835",
"digest": {
"threshold": 0.9,
"line_hashes": [
"335400942427289243216194261493011164826",
"112539507008349734606060646785474580570",
"6747955274008167017013603513309967456",
"321079386013491220200005200596066450513",
"213290603849672081954127312170418223250"
]
},
"source": "https://gitlab.freedesktop.org/slirp/libslirp@14ec36e107a8c9af7d0a80c3571fe39b291ff1d4",
"target": {
"file": "src/tftp.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-24T14:19:47Z"
}
}
],
"modified": "2026-10-24T14:19:47.965799831Z",
"provider": "osv",
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-7211",
"https://gitlab.freedesktop.org/slirp/libslirp/commit/14ec36e107a8c9af7d0a80c3571fe39b291ff1d4"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2020-7211",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 443491,
"published_at": "2020-01-21T17:15:12.58+00:00"
}