Critical
putty — security advisory
PuTTY before 0.73 on Windows improperly opens port-forwarding listening sockets, which allows attackers to listen on the same port to steal an incoming connection.
- Products
- putty
- Affected versions
- 0.65-2, 0.66-1, 0.66-2, 0.66-3, 0.66-4, 0.67-1, 0.67-2, 0.67-3+deb9u1build0.16.04.1, 0.67-3build0.16.04.1, 0.70-1, 0.70-2, 0.70-3, 0.70-4, 0.72-1, 0.73-1, 0.73-2, 0.75-3, 0.76-1, 0.76-2, 0.78-3, 0.79-1, 0.80-1, 0.80-1build2, 0.80-1build3, 0.81-1, 0.83-2, 0.83-3, 0.83-3build1, 0.84-1
- Fixed versions
- Not specified
- CVEs
- CVE-2019-17067
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:29 UTC · Revision 1
Source evidence
PuTTY before 0.73 on Windows improperly opens port-forwarding listening sockets, which allows attackers to listen on the same port to steal an incoming connection.
osv:UBUNTU-CVE-2019-17067
putty
Fixed versions: Not specified
putty
Fixed versions: Not specified
putty
Fixed versions: Not specified
putty
Fixed versions: Not specified
putty
Fixed versions: Not specified
putty
Fixed versions: Not specified
putty
Fixed versions: Not specified
putty
Fixed versions: Not specified
Complete source record
{
"id": "d1440973488feea60236fdfe5f59aef6dd663245f69a07b3d96d362e01af0c8b",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2019-17067",
"method": "structured",
"payload": {
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"title": "UBUNTU-CVE-2019-17067",
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"evidence": "osv:UBUNTU-CVE-2019-17067",
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{
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{
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{
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},
{
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"severity": "critical",
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"aliases": [
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"metrics": [
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{
"type": "Ubuntu",
"score": "medium"
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"0.66-1",
"0.66-2",
"0.66-3",
"0.66-4",
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"0.67-2",
"0.67-3build0.16.04.1",
"0.67-3+deb9u1build0.16.04.1"
],
"database_specific": {
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},
"ecosystem_specific": {
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{
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"0.70-4"
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{
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{
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},
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],
"modified": "2026-10-17T12:55:25.446856091Z",
"provider": "osv",
"upstream": [
"CVE-2019-17067"
],
"references": [
"https://ubuntu.com/security/CVE-2019-17067",
"https://lists.tartarus.org/pipermail/putty-announce/2019/000029.html",
"https://www.cve.org/CVERecord?id=CVE-2019-17067"
]
},
"related_cves": [
{
"value": "CVE-2019-17067",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 353739,
"published_at": "2019-10-01T17:15:00+00:00"
}