Exploitation evidence
Known exploited · CISA KEV listed
Added 2026-06-08. Ransomware campaign use: Known.
CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date: 2026-06-11. 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
checkpoint / Quantum Security Gateway
Default status: Not specified
- affected: R82.10 with Jumbo Hotfix Take 19 or below
- affected: R82 with Jumbo Hotfix Take 103 or below
- affected: R81.20 with Jumbo Hotfix Take 141 or below
- affected: R81.10, R81, and R80.40
checkpoint / Spark Firewalls
Default status: Not specified
- affected: R80.20.X, R81.10.X, and R82.00.X
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": 0.85348,
"percentile": 0.99722
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.85348,
"percentile": 0.9972
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.85348,
"percentile": 0.9972
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.85348,
"percentile": 0.9972
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.85348,
"percentile": 0.99719
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.85348,
"percentile": 0.99719
}06 Nov 2026, 06:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.85348,
"percentile": 0.99719
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.85348,
"percentile": 0.99718
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.85338,
"percentile": 0.99717
}03 Nov 2026, 06:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-50751",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-08T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2026-06-08",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-50751"
},
"type": "kev"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-04T03:56:11.310Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol/"
},
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-50751"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Quantum Security Gateway",
"vendor": "checkpoint",
"versions": [
{
"status": "affected",
"version": "R82.10 with Jumbo Hotfix Take 19 or below"
},
{
"status": "affected",
"version": "R82 with Jumbo Hotfix Take 103 or below"
},
{
"status": "affected",
"version": "R81.20 with Jumbo Hotfix Take 141 or below"
},
{
"status": "affected",
"version": "R81.10, R81, and R80.40"
}
]
},
{
"product": "Spark Firewalls",
"vendor": "checkpoint",
"versions": [
{
"status": "affected",
"version": "R80.20.X, R81.10.X, and R82.00.X"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A logic flow weakness in Remote Access and Mobile Access certificate validation in deprecated IKEv1 key exchange allows an unauthenticated remote attacker to bypass user authentication and establish a remote access VPN connection without a valid user password."
}
],
"metrics": [
{
"format": "CVSS",
"other": {
"content": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH"
},
"type": "CVSSv4.0"
},
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-287",
"description": "CWE-287: Improper Authentication.",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-08T11:07:15.746Z",
"orgId": "897c38be-0345-43cd-b6cf-fe179e0c4f45",
"shortName": "checkpoint"
},
"references": [
{
"url": "https://support.checkpoint.com/results/sk/sk185033"
}
],
"title": "User Authentication Bypass in VPN Remote Access and Mobile Access"
}
},
"cveMetadata": {
"assignerOrgId": "897c38be-0345-43cd-b6cf-fe179e0c4f45",
"assignerShortName": "checkpoint",
"cveId": "CVE-2026-50751",
"datePublished": "2026-06-08T11:07:15.746Z",
"dateReserved": "2026-06-07T09:42:08.251Z",
"dateUpdated": "2026-08-04T03:56:11.310Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.85338,
"percentile": 0.99717
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2026-50751",
"cwes": [
"CWE-287"
],
"dateAdded": "2026-06-08",
"dueDate": "2026-06-11",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Known",
"notes": "https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol/ ; https://support.checkpoint.com/results/sk/sk185033?_gl=1*1wqeqhc*_gcl_au*MTI1MzE5MjI2LjE3ODA5MzQ1NTM. ; https://nvd.nist.gov/vuln/detail/CVE-2026-50751",
"product": "Security Gateway",
"requiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
"shortDescription": "Check Point Security Gateway contains an improper authentication vulnerability in IKEv1 key exchange that could allow an unauthenticated remote attacker to bypass user authentication and establish a remote access VPN connection without a valid user password.",
"vendorProject": "Check Point",
"vulnerabilityName": "Check Point Security Gateway Improper Authentication Vulnerability"
}