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CVE-2026-85103

CVE-2026-85103

waiting for further signalsZero needs more public information before it can validate it.

EUVD-2026-75010 ↗

no check availablenot proven exploitable
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.+16d
checkpoint Quantum Security Gateway R82.10 with Jumbo Hotfix Take 43 or below; R82 with Jumbo Hotfix Take 125 or below; R81.20 with Jumbo Hotfix Take 165 or below
ETK-2026-1271Zero's internal tracking ID, independent of the CVE number., permanent identifier
cvss9.8otherCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9d 05h 28msince last run
8mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
cve.org publication−15dtrigger signal +0dkev+1.0dwaiting for further signals+17d
−10d
−5d
0

description

Quantum Security Gateway and Quantum Security Management are affected when processing VPN certificate ASN.1 data. An unauthenticated remote attacker may be able to run code on an affected system, provided they can reach the relevant VPN certificate-processing service.

mitigation

Restrict network access to VPN services and certificate-processing interfaces to trusted sources until vendor updates can be applied. Monitor Check Point advisories and upgrade affected Gateway and Management systems when a fixed release is published.

check
no
exploit
no
automationDeterministic: a check that runs on its own, the same request on every target. Contextual: an agentic technique that needs to be applied per target, for bugs that depend on contextual flows.
contextual
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
4.3%91st percentile
agent run time
8m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-09-09 13:00Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
–
Δ to kevAttacks confirmed in the real world.
+16d

outcome

Contextual: an exploit technique exists, but no deterministic check could cover this one.

source signals

Public signals that triggered or updated the pipeline. These are inputs for the deltas above.

  1. 2026-09-09 13:00Z
  2. 2026-09-25
    euvd: trigger signal, started the run
    https://euvd.enisa.europa.eu/enisa/EUVD-2026-75010
  3. 2026-09-25 00:00Z

this entry in the feed

GET /api/v1/feed/CVE-2026-85103

{
  "etk_id": "ETK-2026-1271",
  "cve_id": "CVE-2026-85103",
  "display_id": "CVE-2026-85103",
  "ghsa_id": null,
  "euvd_id": "EUVD-2026-75010",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Heap buffer overflow in Quantum Security VPN certificate decoding",
  "summary": "Quantum Security Gateway and Quantum Security Management are affected when processing VPN certificate ASN.1 data. An unauthenticated remote attacker may be able to run code on an affected system, provided they can reach the relevant VPN certificate-processing service.",
  "mitigation": "Restrict network access to VPN services and certificate-processing interfaces to trusted sources until vendor updates can be applied. Monitor Check Point advisories and upgrade affected Gateway and Management systems when a fixed release is published.",
  "vendor": "checkpoint",
  "product": "Quantum Security Gateway",
  "affected": [
    {
      "affected_notes": [
        "R82.10 with Jumbo Hotfix Take 43 or below",
        "R82 with Jumbo Hotfix Take 125 or below",
        "R81.20 with Jumbo Hotfix Take 165 or below"
      ],
      "affected_ranges": [],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Quantum Security Gateway",
      "purl": null
    },
    {
      "affected_notes": [
        "R82.10 with Jumbo Hotfix Take 43 or below",
        "R82 with Jumbo Hotfix Take 125 or below",
        "R81.20 with Jumbo Hotfix Take 165 or below"
      ],
      "affected_ranges": [],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Quantum Security Management",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 9.8,
  "cvss_src": "other",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": 0.0433,
  "epss_percentile": 0.9108,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 8.1440709,
  "t0_at": "2026-09-09T13:00:42.088000+00:00",
  "signals": {
    "kev": {
      "at": "2026-09-25T00:00:00+00:00",
      "days": 16,
      "is_lower_bound": false,
      "measured_at": "2026-09-09T13:00:42.088000+00:00",
      "precision": "day",
      "url": "https://euvd.enisa.europa.eu/enisa/EUVD-2026-75010"
    },
    "trigger_signal": {
      "at": "2026-09-25T00:00:00+00:00",
      "days": 15.457846203703705,
      "is_lower_bound": false,
      "measured_at": "2026-09-09T13:00:42.088000+00:00",
      "url": "https://euvd.enisa.europa.eu/enisa/EUVD-2026-75010"
    }
  }
}

published 2026-10-11 23:32Z
last change 2026-10-21 03:59Z

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