Medium
Security advisory
In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker) can manipulate the client output, for example to use ANSI control codes to hide additional files being transferred.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-6110
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:59 UTC · Revision 1
Source evidence
In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker) can manipulate the client output, for example to use ANSI control codes to hide additional files being transferred.
osv:CVE-2019-6110
Complete source record
{
"id": "ce14aa6aa0d3c42e96c743a387e51bd72c48792bebe08e8a0c647d28010ea653",
"url": "https://osv.dev/vulnerability/CVE-2019-6110",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-6110",
"summary": "In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker) can manipulate the client output, for example to use ANSI control codes to hide additional files being transferred.",
"evidence": "osv:CVE-2019-6110",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2019-6110",
"aliases": [
"CVE-2019-6110"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/openssh/openssh-portable",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "aede1c34243a6f7feae2fb2cb686ade5f9be6f3d"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "7.9"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"V_7_9_P1",
"V_7_8_P1",
"V_7_7_P1",
"V_7_6_P1",
"V_7_5_P1",
"V_7_4_P1",
"V_7_3_P1",
"V_7_2_P1",
"V_7_1_P1",
"V_7_0_P1",
"V_6_9_P1",
"V_6_8_P1",
"V_6_6_P1",
"V_6_5_P1",
"V_6_2_P1",
"V_6_1_P1",
"V_6_0_P1",
"V_5_7_P1",
"V_5_5_P1",
"V_5_2_P1",
"V_5_1_P1",
"V_5_0_P1",
"V_4_2_P1",
"V_3_9_P1",
"V_3_8_P1",
"AFTER_KRB5_GSSAPI_MERGE",
"BEFORE_KRB5_GSSAPI_MERGE",
"POST_KRB4_REMOVAL",
"PRE_KRB4_REMOVAL",
"AFTER_FREEBSD_PAM_MERGE",
"BEFORE_FREEBSD_PAM_MERGE",
"V_3_6_1_P1",
"V_3_4_P1",
"V_3_2_2_P1",
"PRE_SW_KRBV",
"V_3_1_P1",
"V_3_0_1_P1",
"V_3_0_P1",
"V_2_5_2_P1",
"V_2_5_1_P2",
"V_2_5_1_P1",
"V_2_5_0_P1",
"PRE-REORDER",
"V_2_3_0_P1",
"PRE_CYGWIN_MERGE",
"V_2_2_0_P1",
"V_2_1_1_P4",
"V_2_1_1_P3",
"ABOUT_TO_ADD_INET_ATON",
"V_2_1_1_P2",
"V_2_1_1_P1",
"PRE_NEW_LOGIN_CODE",
"V_2_1_0_P3",
"V_2_1_0_P2",
"V_2_1_0_P1",
"V_2_1_0",
"V_2_0_0_BETA2",
"V_2_0_0_BETA1",
"V_2_0_0_TEST1",
"V_1_2_3_TEST3",
"V_1_2_3_TEST2",
"V_1_2_3_TEST1",
"V_1_2_3",
"V_1_2_3_PRE5",
"V_1_2_3_PRE4",
"V_1_2_3_PRE3",
"V_1_2_3_PRE2",
"V_1_2_3_PRE1",
"V_1_2_2_P1",
"V_1_2_2",
"V_1_2_2_PRE29",
"V_1_2_2_PRE28",
"V_1_2_1_PRE27",
"V_1_2_1_PRE26",
"PRE_IPV6",
"V_1_2_1_PRE25",
"V_1_2_1_PRE24",
"V_1_2_1_PRE23",
"V_1_2_1_PRE22",
"PRE_FIXPATHS_INTEGRATION",
"V_1_2_1_PRE21",
"V_1_2_1_PRE20",
"V_1_2_1_PRE19",
"PRE_HPUX_INTEGRATION",
"V_1_2_1_PRE18",
"V_1_2PRE17",
"V_1_2_PRE16",
"V_1_2_PRE15",
"V_1_2_PRE14",
"V_1_2_PRE13",
"V_1_2_PRE12",
"V_1_2_PRE11",
"V_1_2_PRE10",
"V_1_2_PRE9",
"V_1_2_PRE8",
"V_1_2_PRE7",
"V_1_2_PRE6",
"V_1_2_PRE5",
"V_1_2_PRE4",
"PRE_DAN_PATCH_MERGE"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-6110.json"
}
}
],
"modified": "2026-10-24T10:30:23.551550892Z",
"provider": "osv",
"references": [
"https://cert-portal.siemens.com/productcert/html/ssa-398330.html",
"https://cert-portal.siemens.com/productcert/html/ssa-412672.html",
"https://cvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.c",
"https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.c",
"https://security.gentoo.org/glsa/201903-16",
"https://security.netapp.com/advisory/ntap-20190213-0001/",
"https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt",
"https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf",
"https://www.exploit-db.com/exploits/46193/"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:siemens:scalance_x204rna_eec_firmware:*:*:*:*:*:*:*:*"
],
"vendor_product": "siemens:scalance_x204rna_eec_firmware",
"extracted_events": [
{
"range": [
{
"fixed": "3.2.7"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:o:siemens:scalance_x204rna_firmware:*:*:*:*:*:*:*:*"
],
"vendor_product": "siemens:scalance_x204rna_firmware",
"extracted_events": [
{
"range": [
{
"fixed": "3.2.7"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:winscp:winscp:*:*:*:*:*:*:*:*"
],
"vendor_product": "winscp:winscp",
"extracted_events": [
{
"range": [
{
"last_affected": "5.13"
}
],
"source": "CPE_RANGE"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2019-6110",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 430951,
"published_at": "2019-01-31T18:29:00.807+00:00"
}