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ExploitedNot in CISA KEV yetAwaiting NVD analysis

CVE-2026-85103

Exploitation confirmed. First attested on 2026-09-25 by ENISA EUVD, GCVE · enisa-cnw-kev.

  • Published2026-09-09
  • WeaknessCWE-122

Am I 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

A heap-based buffer overflow in VPN certificate ASN.1 decoding may allow an unauthenticated remote attacker to execute arbitrary code on Check Point Quantum Security Management and Quantum Security Gateway systems.

Timeline

dates in UTC
  1. 2026-09-0913:20CVE publishedNVD
  2. 2026-09-25Reported as exploited by ENISA (EUVD)ENISA EUVD
  3. 2026-09-25Exploitation first reportedENISA EUVD
  4. 2026-09-25Listed as exploited by GCVEGCVE

Versions per branch

Products declared by the CNA

As checkpoint, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • checkpoint Quantum Security Gateway
    Affected
    • = 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
  • checkpoint Quantum Security Management
    Affected
    • = 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

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-85103 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

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
2026-09-10
NVD status
Awaiting Analysis
GitHub Advisory
GHSA-g4cm-76f6-qvmc

Frequently asked questions

What is CVE-2026-85103?

A heap-based buffer overflow in VPN certificate ASN.1 decoding may allow an unauthenticated remote attacker to execute arbitrary code on Check Point Quantum Security Management and Quantum Security Gateway systems.

Is CVE-2026-85103 actively exploited?

Active exploitation of CVE-2026-85103 has not been confirmed. Its EPSS score was 4.3% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-85103?

CVE-2026-85103 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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