CVE-2026-85102 — Check Point Multiple Products Improper Certificate Validation Vulnerability
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.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- Confirmed exploitation (CISA KEV)+35
- Public exploit/PoC (github)+6
- EPSS 7.5% (30-day exploitation probability)+14
- Technical severity (critical)+10
- Automatable exploitation (SSVC)+3
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
CISA SSVC assessment CISA
Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
- Documented patch — support.checkpoint.com (NIST National Vulnerability Database)
CISA required action CISA
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.
US federal deadline: Sep 25, 2026 — passed 20 day(s) ago
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Checkpoint Gaia Embedded, Checkpoint Gaia Os, Checkpoint Quantum Security Gateway).
- Treat as emergency remediation: the CVE is in CISA KEV (confirmed exploitation).
- The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
- Apply the fixed version or the patch documented under Remediation.
- EPSS ahead of 94% of scored CVEs: prioritize it in the patch queue.
- Search available logs for exploit probes matching the vulnerability class (cryptography), errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Checkpoint | Gaia Embedded |
version r81.10.17version r82.00.10-build_998002279version r82.00.10-build_998002242version r82.00.10-build_998002216version r82.00.10-build_998002203version r82.00.10-build_998002133version r82.00.10-build_998002112version r82.00.10-build_998002110 and 13 moreversion r82.00.10-build_998001562version r82.00.10-build_998001559version r82.00.10version r81.10.17-build_996004936version r81.10.17-build_996004914version r81.10.17-build_996004901version r81.10.17-build_996004892version r81.10.17-build_996004721version r81.10.17-build_996004653version r81.10.17-build_996004620version r81.10.17-build_996004508≥ r82.00.00 and < r82.00.10≥ r81.10.00 and < r81.10.17 |
Vulnerable | NIST National Vulnerability Database |
| Checkpoint | Gaia Os |
≥ r80 and < r81.10version r81.10version r81.10-take_106version r81.10-take_107version r81.10-take_109version r81.10-take_110version r81.10-take_113version r81.10-take_128 and 108 moreversion r81.10-take_129version r81.10-take_130version r81.10-take_131version r81.10-take_132version r81.10-take_135version r81.10-take_139version r81.10-take_14version r81.10-take_141version r81.10-take_150version r81.10-take_152version r81.10-take_156version r81.10-take_158version r81.10-take_165version r81.10-take_169version r81.10-take_170version r81.10-take_171version r81.10-take_172version r81.10-take_173version r81.10-take_174version r81.10-take_177version r81.10-take_181version r81.10-take_183version r81.10-take_187version r81.10-take_22version r81.10-take_30version r81.10-take_38version r81.10-take_44version r81.10-take_45version r81.10-take_55version r81.10-take_61version r81.10-take_66version r81.10-take_75version r81.10-take_78version r81.10-take_79version r81.10-take_81version r81.10-take_82version r81.10-take_85version r81.10-take_87version r81.10-take_9version r81.10-take_93version r81.10-take_94version r81.10-take_95version r81.20version r81.20-take_10version r81.20-take_101version r81.20-take_103version r81.20-take_105version r81.20-take_111version r81.20-take_113version r81.20-take_115version r81.20-take_118version r81.20-take_119version r81.20-take_120version r81.20-take_122version r81.20-take_126version r81.20-take_127version r81.20-take_14version r81.20-take_141version r81.20-take_146version r81.20-take_158version r81.20-take_161version r81.20-take_24version r81.20-take_26version r81.20-take_38version r81.20-take_41version r81.20-take_43version r81.20-take_45version r81.20-take_53version r81.20-take_54version r81.20-take_65version r81.20-take_70version r81.20-take_76version r81.20-take_79version r81.20-take_8version r81.20-take_84version r81.20-take_89version r81.20-take_90version r81.20-take_92version r81.20-take_96version r81.20-take_98version r81.20-take_99version r82version r82-take_10version r82-take_103version r82-take_107version r82-take_118version r82-take_12version r82-take_122version r82-take_14version r82-take_18version r82-take_19version r82-take_25version r82-take_33version r82-take_34version r82-take_36version r82-take_39version r82-take_41version r82-take_43version r82-take_44version r82-take_60version r82-take_73version r82-take_91version r82.10version r82.10-take_19version r82.10-take_24version r82.10-take_36version r82.10-take_40version r82.10-take_6 |
Vulnerable | NIST National Vulnerability Database |
| Checkpoint | Quantum Security Gateway | version R82.10 with Jumbo Hotfix Take 43 or belowversion R82 with Jumbo Hotfix Take 125 or belowversion R81.20 with Jumbo Hotfix Take 165 or below | Vulnerable | CVE Program (cve.org) e CISA ADP |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 9.8 | CVSS 3.1 | Critical | 3.9 | 5.9 | cve@checkpoint.com via NIST National Vulnerability Database |
| 9.8 | CVSS 3.1 | Critical | — | — | GitHub, Inc. via GitHub Security Advisories |
| 9.8 | CVSS 3.1 | Critical | — | — | checkpoint via CVE Program (cve.org) e CISA ADP |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (score shown at the top: cve@checkpoint.com) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
CISA KEV details CISA
CISA lists a CVE once it has evidence of exploitation against real targets.
CISA records ransomware use only for campaigns it has confirmed, so “Unknown” means unrecorded, not ruled out. The deadline binds US federal agencies; for everyone else it is a reference date.
Public exploits, PoCs and detection templates
Public code that demonstrates or tests the flaw raises the odds of mass exploitation — and Nuclei templates help find vulnerable assets in your environment.
Warning: public PoCs are sometimes disguised malware. Use them only for authorized testing in an isolated environment. This portal does not host exploit code — it only points to the sources.
EPSS over time FIRST
Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 7.55%
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
- Check TLS negotiations and unexpected certificates in the component’s traffic.
- Hunt retroactively in logs from before Sep 22, 2026 (KEV listing): exploitation may have started earlier.
Timeline
What happened to this CVE, newest first.
- 2026
- Affected products added · checkpoint/quantum security gateway
- SSVC assessment updated
- Record published
- Fix documented
- Affected products added · checkpoint/gaia embedded, checkpoint/gaia os
- CVSS changed · 9.8
- Source status changed · → Analyzed
- Added to CISA KEV (detected)
- Record created in this database
- Added to CISA KEV catalog
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 2× References added · Oct 13, 2026 – Oct 13, 2026
- 1× Official description updated · Oct 13, 2026 – Oct 13, 2026
References
6 on the record
- blog.checkpoint.com/security/security-advisory-action-required-active-exploitation-of-cve
- support.checkpoint.com/results/sk/sk1000117
- www.cisa.gov/known-exploited-vulnerabilities-catalog
- github.com/advisories/GHSA-3fvr-5gg9-225m
- nvd.nist.gov/vuln/detail/CVE-2026-85102
- blog.checkpoint.com/security/security-advisory-action-required-active-exploitation-of-cve
Elsewhere on this site
Related CVEs (same products)
- Critical CVE-2026-50751 Check Point Security Gateway Improper Authentication Vulnerability KEV Jun 8, 2026
- High CVE-2026-50752 Certificate Validation Bypass in VPN Site-to-Site Connections Using IKEv1 Jun 8, 2026
- Medium CVE-2026-48135 HTTP service can incorrectly process malformed HTTP requests May 26, 2026
- High CVE-2026-48132 VPN service may restart unexpectedly when processing IKE traffic over NAT-T 4500/UDP May 26, 2026
- Medium CVE-2026-48134 SQL injection issue in UserCheck Portal when DLP Software Blade is active May 26, 2026
- High CVE-2026-48131 VPND IKE Fragment Reassembly - Heap Out-of-Bounds Write via Sequence Number Zero May 26, 2026
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2026-85102 is "Check Point Multiple Products Improper Certificate Validation Vulnerability", rated Critical. It affects Gaia Embedded (Checkpoint); versions are in the scope table. It is in CISA KEV: there is evidence of real-world exploitation. CVSS 9.8 describes technical severity. EPSS 7.55% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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