UnratedFix available
freerdp: Fix of 3 CVEs
Type: advisorySources: OSV
- CVE-2026-55564: fix out-of-bounds read in glyph_cache_get; reject an index equal to the cache size - CVE-2026-55191: fix 32-bit integer overflow in the avc444_ensure_buffer YUV444 buffer size calculation - CVE-2026-55192: reject H.264 frames decoded by openh264 that are smaller than the context dimensions
- Products
- freerdp, freerdp-devel, freerdp-libs, libwinpr, libwinpr-devel
- Affected versions
- Not specified
- Fixed versions
- 2.1.1-5.0.9.el7_9.tuxcare.els3
- CVEs
- CVE-2026-55191, CVE-2026-55192, CVE-2026-55564
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:49 UTC · Revision 1
Source evidence
- CVE-2026-55564: fix out-of-bounds read in glyph_cache_get; reject an index equal to the cache size - CVE-2026-55191: fix 32-bit integer overflow in the avc444_ensure_buffer YUV444 buffer size calculation - CVE-2026-55192: reject H.264 frames decoded by openh264 that are smaller than the context dimensions
osv:CLSA-2026-1791117866
freerdp
Fixed versions: 2.1.1-5.0.9.el7_9.tuxcare.els3
freerdp-devel
Fixed versions: 2.1.1-5.0.9.el7_9.tuxcare.els3
freerdp-libs
Fixed versions: 2.1.1-5.0.9.el7_9.tuxcare.els3
libwinpr
Fixed versions: 2.1.1-5.0.9.el7_9.tuxcare.els3
libwinpr-devel
Fixed versions: 2.1.1-5.0.9.el7_9.tuxcare.els3
Complete source record
{
"id": "5108324238685462f81d8c78ddf5d1b336dde0638f339f743d647ba54a427404",
"url": "https://osv.dev/vulnerability/CLSA-2026-1791117866",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "freerdp: Fix of 3 CVEs",
"summary": "- CVE-2026-55564: fix out-of-bounds read in glyph_cache_get; reject an index equal to the cache size - CVE-2026-55191: fix 32-bit integer overflow in the avc444_ensure_buffer YUV444 buffer size calculation - CVE-2026-55192: reject H.264 frames decoded by openh264 that are smaller than the context dimensions",
"evidence": "osv:CLSA-2026-1791117866",
"products": [
{
"name": {
"value": "freerdp",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.1-5.0.9.el7_9.tuxcare.els3",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "freerdp-devel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.1-5.0.9.el7_9.tuxcare.els3",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "freerdp-libs",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.1-5.0.9.el7_9.tuxcare.els3",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libwinpr",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.1-5.0.9.el7_9.tuxcare.els3",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libwinpr-devel",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.1-5.0.9.el7_9.tuxcare.els3",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1791117866",
"aliases": [
"CLSA-2026-1791117866"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.1-5.0.9.el7_9.tuxcare.els3"
}
]
}
],
"package": {
"name": "freerdp",
"purl": "pkg:rpm/tuxcare/freerdp?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791117866.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.1-5.0.9.el7_9.tuxcare.els3"
}
]
}
],
"package": {
"name": "freerdp-devel",
"purl": "pkg:rpm/tuxcare/freerdp-devel?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791117866.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.1-5.0.9.el7_9.tuxcare.els3"
}
]
}
],
"package": {
"name": "freerdp-libs",
"purl": "pkg:rpm/tuxcare/freerdp-libs?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791117866.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.1-5.0.9.el7_9.tuxcare.els3"
}
]
}
],
"package": {
"name": "libwinpr",
"purl": "pkg:rpm/tuxcare/libwinpr?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791117866.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.1-5.0.9.el7_9.tuxcare.els3"
}
]
}
],
"package": {
"name": "libwinpr-devel",
"purl": "pkg:rpm/tuxcare/libwinpr-devel?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1791117866.json"
}
}
],
"modified": "2026-10-26T09:43:27.084505579Z",
"provider": "osv",
"upstream": [
"CVE-2026-55191",
"CVE-2026-55192",
"CVE-2026-55564"
],
"references": [
"https://errata.tuxcare.com/els_os/oraclelinux7els/CLSA-2026-1791117866.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-55191",
"https://nvd.nist.gov/vuln/detail/CVE-2026-55192",
"https://nvd.nist.gov/vuln/detail/CVE-2026-55564"
]
},
"related_cves": [
{
"value": "CVE-2026-55191",
"evidence": "/upstream"
},
{
"value": "CVE-2026-55192",
"evidence": "/upstream"
},
{
"value": "CVE-2026-55564",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449915,
"published_at": "2026-10-04T12:44:37+00:00"
}