HighFix available
ncurses — security advisory
An issue was discovered in ncurses through v6.2-1. _nc_captoinfo in captoinfo.c has a heap-based buffer overflow.
- Products
- ncurses
- Affected versions
- Not specified
- Fixed versions
- 6.2+20200912-1
- CVEs
- CVE-2021-39537
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 11:08 UTC · Revision 1
Source evidence
An issue was discovered in ncurses through v6.2-1. _nc_captoinfo in captoinfo.c has a heap-based buffer overflow.
osv:DEBIAN-CVE-2021-39537
ncurses
Fixed versions: 6.2+20200912-1
ncurses
Fixed versions: 6.2+20200912-1
ncurses
Fixed versions: 6.2+20200912-1
Complete source record
{
"id": "6fce4fa87ca75107d8d59ea7185853f641d3bfea3c5dcbfd1ffc752a8befcbe9",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-39537",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2021-39537",
"summary": "An issue was discovered in ncurses through v6.2-1. _nc_captoinfo in captoinfo.c has a heap-based buffer overflow.",
"evidence": "osv:DEBIAN-CVE-2021-39537",
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"evidence": "/affected/0/ranges"
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{
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"severity": "high",
"structured": {
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"aliases": [
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"metrics": [
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],
"modified": "2026-10-09T09:47:34.163881640Z",
"provider": "osv",
"upstream": [
"CVE-2021-39537"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2021-39537"
]
},
"related_cves": [
{
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"evidence": "/upstream"
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"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 111663,
"published_at": "2021-09-20T16:15:12.477+00:00"
}