CVE-2026-85103

criticalpriority · act · 90OT risk · criticalEU KEV · CNWEPSS 0.043 · 91 %ileDENLRU

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

4.33% (91st) EPSS

CVSS 9.8 · critical

Is it mine?

46 products

Check your exposure

Who says so?

3 sources

fstec_bdu · cert_bund · ncsc_nl

EU KEVflagged by CNWreported 2026-09-25patched 2026-09-07

CVE-2026-85103 is a heap-based buffer overflow in ASN.1 certificate decoding that may allow an unauthenticated remote attacker to execute arbitrary code on Check Point Quantum Security Gateway and Security Management systems.

EPSS · scored 2026-10-22

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · cve@checkpoint.comexploitability 3.9 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-122USCWE-122USCWE-122US

affected products (46)

Products and version ranges known to be affected.

Check Point Security Gateway R81.20 <Take 26all versionscert_bundDE
Check Point Security Gateway R82 <Take 26all versionscert_bundDE
Check Point Security Gateway R82.10 <Take 26all versionscert_bundDE
Check Point Spark Firewall R81.20 <Take 26all versionscert_bundDE
Check Point Spark Firewall R82 <Take 26all versionscert_bundDE
Check Point Spark Firewall R82.10 <Take 26all versionscert_bundDE
Check Point Security Gateway≤ R82 <Jumbo Hotfix Take 126cert_bundDE
Check Point Security Gateway≤ R81.20 <Take 24cert_bundDE
Check Point Security Gateway≤ R82 <Take 24cert_bundDE
Check Point Security Gateway≤ R82.10 <Take 24cert_bundDE
Check Point Security Gateway≤ R81.20 <Jumbo Hotfix Take 166cert_bundDE
Check Point Security Gateway≤ R82.10 <Jumbo Hotfix Take 44cert_bundDE
Check Point Security Gateway≤ R81.20 <Take 26cert_bundDE
Check Point Security Gateway≤ R82 <Take 26cert_bundDE
Check Point Security Gateway≤ R82.10 <Take 26cert_bundDE
Check Point Security Management≤ Server R81.20 <Jumbo Hotfix Take 166cert_bundDE
Check Point Security Management≤ Server R82 <Take 24cert_bundDE
Check Point Security Management≤ Server R82.10 <Take 24cert_bundDE
Check Point Security Management≤ Server R82 <Jumbo Hotfix Take 126cert_bundDE
Check Point Security Management≤ Server R82.10 <Jumbo Hotfix Take 44cert_bundDE

showing 20 of 46

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0365Kwetsbaarheden verholpen in Check Point VPN-productenNL2026-09-10csaf · ncsc_nlNL
Check Point heeft twee kritieke kwetsbaarheden verholpen in Quantum Security Gateway en Security Management.
WID-SEC-W-2026-3305Check Point Security Gateway, Spark Firewall und Security Management: Mehrere Schwachstellen ermöglichen CodeausführungDeutsch2026-09-09csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Check Point Security Gateway, Check Point Spark Firewall und Check Point Security Management ausnutzen, um beliebigen Programmcode auszuführen.

also known as (1)

Other names and identifiers for this entity.

BDU:2026-14792 fstec_bdu

sources

Which sources assert this record, and when.

fstec_bdu cert_bund ncsc_nl NVD CVE.org MITRE

published 2026-09-09modified 2026-09-17

references (1) nvd

External citations — patches, advisories, analysis.

https://support.checkpoint.com/results/sk/sk1000118

scry

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