Vulnerability · Published Sep 9, 2026 · Assigned by checkpoint
CVE-2026-85103Heap-based Buffer Overflow in VPN Certificate ASN.1 Decoding
Critical 9.8
In plain English
A critical-severity heap buffer overflow in Quantum Security Gateway from checkpoint. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.3% (higher than 91% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)4.3%top 8.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| checkpoint | Quantum Security Gateway | R82.10 with Jumbo Hotfix Take 43 or belowR82 with Jumbo Hotfix Take 125 or belowR81.20 with Jumbo Hotfix Take 165 or below |
| checkpoint | Quantum Security Management | R82.10 with Jumbo Hotfix Take 43 or belowR82 with Jumbo Hotfix Take 125 or belowR81.20 with Jumbo Hotfix Take 165 or below |
Weakness: CWE-122 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H