Unauthenticated RCE in widely deployed Check Point Quantum Security Management/Gateway appliances; compromises network security and is organization-disruptive.
CVE-2026-85103
Unauthenticated RCE in Check Point VPN certificate ASN.1 parsing.
Is CVE-2026-85103 being exploited?
Not confirmed. CVE-2026-85103 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.36% probability of exploitation in the next 30 days.
How severe is CVE-2026-85103?
CVE-2026-85103 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-85103?
Not known from our data. No patch reference has been recorded for CVE-2026-85103, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-85103 affect?
CVE-2026-85103 affects Check Point Quantum Security Gateway, Check Point Quantum Security Management. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-85103?
Apply vendor updates ASAP; isolate/patch affected gateways and rotate VPN certificates.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote code execution via heap overflow in VPN certificate ASN.1 decoding; full compromise of Check Point Management/Gateway and bypass of network defenses.
Immediate action required
- affectedR82.10 with Jumbo Hotfix Take 43 or below
- affectedR82 with Jumbo Hotfix Take 125 or below
- affectedR81.20 with Jumbo Hotfix Take 165 or below
- affectedR82.10 with Jumbo Hotfix Take 43 or below
- affectedR82 with Jumbo Hotfix Take 125 or below
- affectedR81.20 with Jumbo Hotfix Take 165 or below
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.