CVE-2026-85102
Exploitation confirmed. First attested on 2026-09-22 by CISA-ADP, CISA KEV, GCVE · enisa-cnw-kev, GCVE · previdian.
- Published2026-09-09
- Fixed inr81.10
- WeaknessCWE-295
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Improper certificate trust validation during VPN negotiation in Check Point Quantum Security Gateway may allow an unauthenticated remote attacker to execute arbitrary code on the Gateway.
Timeline
dates in UTCVersions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | ≥ r80, < r81.10 | r81.10 | NVD |
| — | = r81.10 | no fix published | NVD |
| — | = r81.20 | no fix published | NVD |
| — | = r82 | no fix published | NVD |
| — | = r82.10 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | ≥ r82.00.00, < r82.00.10 | r82.00.10 | NVD |
| — | ≥ r81.10.00, < r81.10.17 | r81.10.17 | NVD |
| — | = r81.10.17 | no fix published | NVD |
| — | = r82.00.10 | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Products declared by the CNA1 product
As checkpoint, the CNA that assigned this CVE, declared them in the CVE record; versions as written.
- checkpoint Quantum Security GatewayAffected
- = R82.10 with Jumbo Hotfix Take 43 or belowno fix stated
- = R82 with Jumbo Hotfix Take 125 or belowno fix stated
- = R81.20 with Jumbo Hotfix Take 165 or belowno fix stated
Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-09-09
Fix
- Update Checkpoint gaia os to r81.10
- CISA’s required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.due 2026-09-25
Advisories and patches
- support.checkpoint.comMitigation · Patch · Vendor Advisory
- blog.checkpoint.comVendor Advisory
Detection
read 2026-11-01 01:02 UTC- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof of concept
- PoC-in-GitHub1 repository, unverifiedknown since 2026-11-01aduli198/CVE-2026-85102
- Metasploit modules
- none listed Metasploit Framework
CISA Known Exploited Vulnerability
- Date Added
- 2026-09-22
- Patch Due Date
- 2026-09-25
- Ransomware Use
- Unknown
- Required Action
- Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Sources
- NVDCVE recordread 2026-10-23
- CISA KEVKEV entry2026-09-22
- ENISA EUVDexploitation2026-09-222026-09-22
- GCVEexploitation2026-09-22
- CISA-ADPSSVC decisionactive2026-09-22
- CNACVSS 3.19.8known since 2026-10-23
- CNAweakness (CWE)CWE-295known since 2026-10-23
- FIRST EPSSEPSS score54.1 %read 2026-11-04
- PoC-in-GitHubproof of concept1known since 2026-11-01
- GitHub Advisoriesadvisory—
Identifiers
- EUVD-2026-75009same flawENISA EUVD · LicenseRef-ENISA-legal-notice
- GHSA-3fvr-5gg9-225msame flawGitHub Advisory Database · CC-BY-4.0
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2026-09-09
- Last Modified
- 2026-09-23
- NVD status
- Analyzed
- GitHub Advisory
- GHSA-3fvr-5gg9-225m
Frequently asked questions
What is CVE-2026-85102?
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What is the CVSS score for CVE-2026-85102?
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Related vulnerabilities
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Sources for this record
- CISA KEV · CC0-1.0 (cisagov/kev-data)
- CVE Program · CVE Program Terms of Use
- ENISA EU Vulnerability Database · ENISA legal notice §1.2 (reproduction authorised, provided the source is acknowledged)
- FIRST EPSS · EPSS terms of use (free use, attribution requested)
- GCVE · GCVE dump terms (preserve source attribution)
- GitHub Advisory Database · CC-BY-4.0 · GHSA-3fvr-5gg9-225m
- NVD · Public domain (17 U.S.C. § 105) for NVD-authored data; third-party content under its own terms
- PoC-in-GitHub · CC0-1.0
- CISA Vulnrichment · CC0-1.0