CVE-2019-1123
Status: ModifiedHigh (8.8)—💥 Exploit
A remote code execution vulnerability exists in the way that DirectWrite handles objects in memory, aka 'DirectWrite Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-1117, CVE-2019-1118, CVE-2019-1119, CVE-2019-1120, CVE-2019-1121, CVE-2019-1122, CVE-2019-1124, CVE-2019-1127, CVE-2019-1128.
CVSS
- Version: 3.0
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Base score: 8.8
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 17%
- Percentile among all scored CVEs: 97
- Score date: 10/18/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
💥 Public exploits
Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.
- Published on Exploit-DB · Microsoft DirectWrite / AFDKO - Stack Corruption in OpenType Font Handling While Processing CFF Blend DICT Operator (7/10/2019)
Affected technologies (3)
CWEs
- NVD-CWE-noinfo
References
Raw JSON (NVD)
Show
{
"id": "CVE-2019-1123",
"cveTags": [],
"metrics": {
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"accessVector": "NETWORK",
"vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
"authentication": "NONE",
"integrityImpact": "COMPLETE",
"accessComplexity": "MEDIUM",
"availabilityImpact": "COMPLETE",
"confidentialityImpact": "COMPLETE"
},
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"baseSeverity": "HIGH",
"obtainAllPrivilege": false,
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}
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"userInteraction": "REQUIRED",
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},
"affected": [
{
"source": "secure@microsoft.com",
"affectedData": [
{
"vendor": "Microsoft",
"product": "Windows",
"versions": [
{
"status": "affected",
"version": "10 Version 1709 for 32-bit Systems"
},
{
"status": "affected",
"version": "10 Version 1709 for x64-based Systems"
},
{
"status": "affected",
"version": "10 Version 1803 for 32-bit Systems"
},
{
"status": "affected",
"version": "10 Version 1803 for x64-based Systems"
},
{
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"version": "10 Version 1803 for ARM64-based Systems"
},
{
"status": "affected",
"version": "10 Version 1809 for 32-bit Systems"
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{
"status": "affected",
"version": "10 Version 1809 for x64-based Systems"
},
{
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"version": "10 Version 1809 for ARM64-based Systems"
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{
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{
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"versions": [
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"version": "version 1803 (Core Installation)"
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{
"status": "affected",
"version": "2019"
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{
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},
{
"vendor": "Microsoft",
"product": "Windows 10 Version 1903 for 32-bit Systems",
"versions": [
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{
"vendor": "Microsoft",
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"versions": [
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{
"vendor": "Microsoft",
"product": "Windows 10 Version 1903 for ARM64-based Systems",
"versions": [
{
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"version": "unspecified"
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},
{
"vendor": "Microsoft",
"product": "Windows Server, version 1903 (Server Core installation)",
"versions": [
{
"status": "affected",
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}
]
}
],
"published": "2019-07-15T19:15:20.607",
"references": [
{
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1123",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "secure@microsoft.com"
},
{
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1123",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A remote code execution vulnerability exists in the way that DirectWrite handles objects in memory, aka 'DirectWrite Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-1117, CVE-2019-1118, CVE-2019-1119, CVE-2019-1120, CVE-2019-1121, CVE-2019-1122, CVE-2019-1124, CVE-2019-1127, CVE-2019-1128."
},
{
"lang": "es",
"value": "Se presenta una vulnerabilidad de una ejecución de código remota en la manera en que DirectWrite maneja los objetos en la memoria, también se conoce como 'DirectWrite Remote Code Execution Vulnerability'. El ID de este CVE es diferente de CVE-2019-1117, CVE-2019-1118, CVE-2019-1119, CVE-2019-1120, CVE-2019-1121, CVE-2019-1122, CVE-2019-1124, CVE-2019-1127, CVE-2019-1128."
}
],
"lastModified": "2026-06-17T02:27:52.400",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
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"operator": "OR"
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"sourceIdentifier": "secure@microsoft.com"
}