Exploitation evidence
Known exploited · CISA KEV listed
Added 2022-03-03. Ransomware campaign use: Unknown.
CISA required action: Apply updates per vendor instructions.
CISA due date: 2022-03-24. This is the catalog’s deadline, not an assessment of your organization’s exposure.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
n/a / n/a
Default status: Not specified
- affected: n/a
Fixes and workarounds
No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.
Sources and related reporting
CVE Program record ↗ · Download tracked evidence as JSON
- http://secunia.com/advisories/35372
- http://osvdb.org/54940
- http://www.vupen.com/english/advisories/2009/1544
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-025
- http://www.securitytracker.com/id?1022359
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6206
- http://www.us-cert.gov/cas/techalerts/TA09-160A.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-1123
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
"epss": 0.04878,
"percentile": 0.9218
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.04878,
"percentile": 0.92132
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.04878,
"percentile": 0.92122
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.04878,
"percentile": 0.92118
}08 Nov 2026, 00:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-07T05:04:48.337Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "35372",
"tags": [
"third-party-advisory",
"x_refsource_SECUNIA",
"x_transferred"
],
"url": "http://secunia.com/advisories/35372"
},
{
"name": "54940",
"tags": [
"vdb-entry",
"x_refsource_OSVDB",
"x_transferred"
],
"url": "http://osvdb.org/54940"
},
{
"name": "ADV-2009-1544",
"tags": [
"vdb-entry",
"x_refsource_VUPEN",
"x_transferred"
],
"url": "http://www.vupen.com/english/advisories/2009/1544"
},
{
"name": "MS09-025",
"tags": [
"vendor-advisory",
"x_refsource_MS",
"x_transferred"
],
"url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-025"
},
{
"name": "1022359",
"tags": [
"vdb-entry",
"x_refsource_SECTRACK",
"x_transferred"
],
"url": "http://www.securitytracker.com/id?1022359"
},
{
"name": "oval:org.mitre.oval:def:6206",
"tags": [
"vdb-entry",
"signature",
"x_refsource_OVAL",
"x_transferred"
],
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6206"
},
{
"name": "TA09-160A",
"tags": [
"third-party-advisory",
"x_refsource_CERT",
"x_transferred"
],
"url": "http://www.us-cert.gov/cas/techalerts/TA09-160A.html"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2009-1123",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-04T18:28:52.070048Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2022-03-03",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-1123"
},
"type": "kev"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-noinfo Not enough information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-10-22T00:05:54.609Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-1123"
}
],
"timeline": [
{
"lang": "en",
"time": "2022-03-03T00:00:00.000Z",
"value": "CVE-2009-1123 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"datePublic": "2009-06-09T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "The kernel in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 SP2 does not properly validate changes to unspecified kernel objects, which allows local users to gain privileges via a crafted application, aka \"Windows Kernel Desktop Vulnerability.\""
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2018-10-12T19:57:01.000Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "35372",
"tags": [
"third-party-advisory",
"x_refsource_SECUNIA"
],
"url": "http://secunia.com/advisories/35372"
},
{
"name": "54940",
"tags": [
"vdb-entry",
"x_refsource_OSVDB"
],
"url": "http://osvdb.org/54940"
},
{
"name": "ADV-2009-1544",
"tags": [
"vdb-entry",
"x_refsource_VUPEN"
],
"url": "http://www.vupen.com/english/advisories/2009/1544"
},
{
"name": "MS09-025",
"tags": [
"vendor-advisory",
"x_refsource_MS"
],
"url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-025"
},
{
"name": "1022359",
"tags": [
"vdb-entry",
"x_refsource_SECTRACK"
],
"url": "http://www.securitytracker.com/id?1022359"
},
{
"name": "oval:org.mitre.oval:def:6206",
"tags": [
"vdb-entry",
"signature",
"x_refsource_OVAL"
],
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6206"
},
{
"name": "TA09-160A",
"tags": [
"third-party-advisory",
"x_refsource_CERT"
],
"url": "http://www.us-cert.gov/cas/techalerts/TA09-160A.html"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "secure@microsoft.com",
"ID": "CVE-2009-1123",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "The kernel in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 SP2 does not properly validate changes to unspecified kernel objects, which allows local users to gain privileges via a crafted application, aka \"Windows Kernel Desktop Vulnerability.\""
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "35372",
"refsource": "SECUNIA",
"url": "http://secunia.com/advisories/35372"
},
{
"name": "54940",
"refsource": "OSVDB",
"url": "http://osvdb.org/54940"
},
{
"name": "ADV-2009-1544",
"refsource": "VUPEN",
"url": "http://www.vupen.com/english/advisories/2009/1544"
},
{
"name": "MS09-025",
"refsource": "MS",
"url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-025"
},
{
"name": "1022359",
"refsource": "SECTRACK",
"url": "http://www.securitytracker.com/id?1022359"
},
{
"name": "oval:org.mitre.oval:def:6206",
"refsource": "OVAL",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6206"
},
{
"name": "TA09-160A",
"refsource": "CERT",
"url": "http://www.us-cert.gov/cas/techalerts/TA09-160A.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2009-1123",
"datePublished": "2009-06-10T18:00:00.000Z",
"dateReserved": "2009-03-25T00:00:00.000Z",
"dateUpdated": "2025-10-22T00:05:54.609Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.04878,
"percentile": 0.92112
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.04878,
"percentile": 0.92099
}05 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.04878,
"percentile": 0.92091
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.04878,
"percentile": 0.92086
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.04878,
"percentile": 0.92071
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.04878,
"percentile": 0.9206
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2009-1123",
"cwes": [
"CWE-20"
],
"dateAdded": "2022-03-03",
"dueDate": "2022-03-24",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Unknown",
"notes": "https://nvd.nist.gov/vuln/detail/CVE-2009-1123",
"product": "Windows",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "The kernel in Microsoft Windows does not properly validate changes to unspecified kernel objects, which allows local users to gain privileges via a crafted application.",
"vendorProject": "Microsoft",
"vulnerabilityName": "Microsoft Windows Improper Input Validation Vulnerability"
}