Exploitation evidence
Known exploited · CISA KEV listed
Added 2023-05-01. Ransomware campaign use: Unknown.
CISA required action: Apply updates per vendor instructions.
CISA due date: 2023-05-22. 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
Oracle Corporation / WebLogic Server
Default status: Not specified
- affected: 12.2.1.3.0
- affected: 12.2.1.4.0
- affected: 14.1.1.0.0
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
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": 0.999,
"percentile": 0.99966
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.999,
"percentile": 0.99966
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.999,
"percentile": 0.99966
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.999,
"percentile": 0.99966
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.999,
"percentile": 0.99966
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.999,
"percentile": 0.99966
}06 Nov 2026, 06:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.999,
"percentile": 0.99966
}05 Nov 2026, 00:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T09:51:51.244Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
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"references": [
{
"name": "Oracle Advisory",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://www.oracle.com/security-alerts/cpujan2023.html"
},
{
"tags": [
"x_transferred"
],
"url": "http://packetstormsecurity.com/files/172882/Oracle-Weblogic-PreAuth-Remote-Command-Execution.html"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-21839",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-17T13:56:26.860639Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2023-05-01",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21839"
},
"type": "kev"
}
}
],
"problemTypes": [
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"descriptions": [
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"description": "CWE-306 Missing Authentication for Critical Function",
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],
"providerMetadata": {
"dateUpdated": "2025-10-21T23:15:28.458Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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{
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}
],
"timeline": [
{
"lang": "en",
"time": "2023-05-01T00:00:00.000Z",
"value": "CVE-2023-21839 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
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],
"cna": {
"affected": [
{
"product": "WebLogic Server",
"vendor": "Oracle Corporation",
"versions": [
{
"status": "affected",
"version": "12.2.1.3.0"
},
{
"status": "affected",
"version": "12.2.1.4.0"
},
{
"status": "affected",
"version": "14.1.1.0.0"
}
]
}
],
"descriptions": [
{
"lang": "en-US",
"value": "Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle WebLogic Server accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)."
}
],
"metrics": [
{
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
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"problemTypes": [
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"description": "Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle WebLogic Server accessible data.",
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],
"providerMetadata": {
"dateUpdated": "2023-06-12T06:07:13.838Z",
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"references": [
{
"name": "Oracle Advisory",
"tags": [
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"url": "https://www.oracle.com/security-alerts/cpujan2023.html"
},
{
"url": "http://packetstormsecurity.com/files/172882/Oracle-Weblogic-PreAuth-Remote-Command-Execution.html"
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},
"cveMetadata": {
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"cveId": "CVE-2023-21839",
"datePublished": "2023-01-17T23:35:09.774Z",
"dateReserved": "2022-12-17T19:26:00.690Z",
"dateUpdated": "2025-10-21T23:15:28.458Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.999,
"percentile": 0.99966
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.999,
"percentile": 0.99966
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.999,
"percentile": 0.99966
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2023-21839",
"cwes": [],
"dateAdded": "2023-05-01",
"dueDate": "2023-05-22",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Unknown",
"notes": "https://www.oracle.com/security-alerts/cpujan2023.html; https://nvd.nist.gov/vuln/detail/CVE-2023-21839",
"product": "WebLogic Server",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "Oracle WebLogic Server contains an unspecified vulnerability that allows an unauthenticated attacker with network access via T3, IIOP, to compromise Oracle WebLogic Server.",
"vendorProject": "Oracle",
"vulnerabilityName": "Oracle WebLogic Server Unspecified Vulnerability"
}