Exploitation evidence
Known exploited · CISA KEV listed
Added 2022-12-13. Ransomware campaign use: Unknown.
CISA required action: Apply updates per vendor instructions.
CISA due date: 2023-01-03. 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
Citrix / Citrix Gateway, Citrix ADC
Default status: unaffected
- affected: 12.1
- affected: 13.0
- affected: 12.1 FIPs, NDcPP
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": 0.06858,
"percentile": 0.94134
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.06858,
"percentile": 0.94097
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.06858,
"percentile": 0.9409
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.06858,
"percentile": 0.94088
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.06858,
"percentile": 0.94084
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.06858,
"percentile": 0.94076
}06 Nov 2026, 06:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.06858,
"percentile": 0.94071
}05 Nov 2026, 00:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
"adp": [
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"dateUpdated": "2024-08-03T05:32:59.829Z",
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"shortName": "CVE"
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"references": [
{
"name": "https://support.citrix.com/article/CTX474995",
"tags": [
"x_transferred"
],
"url": "https://support.citrix.com/article/CTX474995"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
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"other": {
"content": {
"id": "CVE-2022-27518",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2023-11-20T20:56:29.075511Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2022-12-13",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-27518"
},
"type": "kev"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-10-21T23:15:30.190Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
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"references": [
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"tags": [
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],
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],
"timeline": [
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"lang": "en",
"time": "2022-12-13T00:00:00.000Z",
"value": "CVE-2022-27518 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
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],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Citrix Gateway, Citrix ADC",
"vendor": "Citrix",
"versions": [
{
"status": "affected",
"version": "12.1"
},
{
"status": "affected",
"version": "13.0"
},
{
"status": "affected",
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"value": "<span style=\"background-color: rgb(255, 255, 255);\">Unauthenticated remote arbitrary code execution</span><br>"
}
],
"value": "Unauthenticated remote arbitrary code execution"
}
],
"impacts": [
{
"capecId": "CAPEC-253",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-253 Remote Code Inclusion"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
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"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-664",
"description": "CWE-664: Improper Control of a Resource Through its Lifetime",
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"providerMetadata": {
"dateUpdated": "2023-10-18T17:34:17.110Z",
"orgId": "e437aed5-38e0-4fa3-a98b-cb73e7acaec6",
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},
"references": [
{
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}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Unauthenticated remote arbitrary code execution",
"x_generator": {
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},
"cveMetadata": {
"assignerOrgId": "e437aed5-38e0-4fa3-a98b-cb73e7acaec6",
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"cveId": "CVE-2022-27518",
"datePublished": "2022-12-13T00:00:00.000Z",
"dateReserved": "2022-03-21T00:00:00.000Z",
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"serial": 1,
"state": "PUBLISHED"
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}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.06858,
"percentile": 0.94066
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.06858,
"percentile": 0.94056
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.06858,
"percentile": 0.94048
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2022-27518",
"cwes": [
"CWE-664"
],
"dateAdded": "2022-12-13",
"dueDate": "2023-01-03",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Unknown",
"notes": "https://www.citrix.com/blogs/2022/12/13/critical-security-update-now-available-for-citrix-adc-citrix-gateway/; https://nvd.nist.gov/vuln/detail/CVE-2022-27518",
"product": "Application Delivery Controller (ADC) and Gateway",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "Citrix Application Delivery Controller (ADC) and Gateway, when configured with SAML SP or IdP configuration, contain an authentication bypass vulnerability that allows an attacker to execute code as administrator.",
"vendorProject": "Citrix",
"vulnerabilityName": "Citrix Application Delivery Controller (ADC) and Gateway Authentication Bypass Vulnerability"
}