Several Check Point products: 2 flaws used in attacks; attackers can run their own code
OFFICIAL NAMES: Check Point Multiple Products Improper Certificate Validation Vulnerability · Check Point Multiple Products Path Traversal Vulnerability
WHAT IT IS · VPN, FIREWALL OR GATEWAYIt sits at the edge of your network and faces the internet, so attackers can reach it directly.
DO THIS FIRSTIf you have it, patch it today. If you cannot, block access to it from the internet until you can. Not sure if you use it? Send this page to your IT provider or security lead and ask.
TECHNICAL SUMMARY Check Point Security Gateway and Check Point Spark Firewall using Site to Site VPN or Remote Access VPN contain an improper certificate validation vulnerability which could allow an unauthenticated remote attacker to execute arbitrary code on the Gateway.
WHY THIS VERDICT Attacks are confirmed. The vulnerability is 49 days old, so many systems are likely still unpatched. Ready-made attack tools are public. The severity score is critical (9.8). The exploit prediction score is 92%.
WHY IT RANKS HERE Exploitation is confirmed by an authoritative source. The product faces the internet or gives remote access. Ready-made attack tools are public. 3 products are affected.
- HIGHEST CONFIRMED RUNG
- EXPLOITED
- CISA KEV
- LISTED
- EXPLOIT CODE
- READY TO USE
How far has it climbed?
01 TALK
▨ REPORTED, NOT CONFIRMEDNEWEST EVIDENCE · 1 SOURCECVE-2026-85102 discussed publicly (CIRCL sighting). CVE-2026-85102 discussed publicly (CIRCL sighting).
02 EXPOSED
□ NOT TRACKED YETNO SOURCE FOR THIS STEP YETWe have no source that counts exposed systems yet. Internet scan data needs a partnership we do not have. No evidence here does not mean nothing is exposed.
03 TRIED
■ CONFIRMEDNEWEST EVIDENCE · 2 INDEPENDENT SOURCESAttacks that worked are confirmed (step 4), so attempts count as confirmed too.
- SRC: CVE List V5 and CISA Vulnrichment: CISA Vulnrichment marks CVE-2026-93616 as actively exploited · SEP 22
- SRC: CISA Known Exploited Vulnerabilities: Check Point Multiple Products Improper Certificate Validation Vulnerability · SEP 21
- SRC: CISA Known Exploited Vulnerabilities: Check Point Multiple Products Path Traversal Vulnerability · SEP 21
- SRC: CVE List V5 and CISA Vulnrichment: CISA Vulnrichment marks CVE-2026-85102 as actively exploited · SEP 9
04 EXPLOITED
■ CONFIRMEDNEWEST EVIDENCE · 2 INDEPENDENT SOURCESCISA Vulnrichment marks CVE-2026-93616 as actively exploited. Check Point Security Gateway and Check Point Spark Firewall using Site to Site VPN or Remote Access VPN contain an improper certificate validation vulnerability which could allow an unauthenticated remote attacker to execute arbitrary code on the Gateway.
- SRC: CVE List V5 and CISA Vulnrichment: CISA Vulnrichment marks CVE-2026-93616 as actively exploited · SEP 22
- SRC: CISA Known Exploited Vulnerabilities: Check Point Multiple Products Improper Certificate Validation Vulnerability · SEP 21
- SRC: CISA Known Exploited Vulnerabilities: Check Point Multiple Products Path Traversal Vulnerability · SEP 21
- SRC: CVE List V5 and CISA Vulnrichment: CISA Vulnrichment marks CVE-2026-85102 as actively exploited · SEP 9
05 DAMAGE
□ NOT TRACKED YETNO SOURCE FOR THIS STEP YETBreach notices and filings rarely name the flaw that was used, so we cannot link them to this event yet. No evidence here does not mean no harm.
When each thing happened
- DISCLOSED
- EXPLOIT CODE PUBLIC
- FIRST ATTACK REPORT
- CISA KEV LISTING
- US FEDERAL DEADLINE
THE FIX
CISA's instruction: apply the vendor's fix, or stop using the product if no fix exists. The deadline CISA set for US federal agencies, Sep 25, 2026, has passed. It is a US government deadline; use it as a guide.
Questions to ask this week
- Do we run Several Check Point products? If yes, is it patched or cut off from the internet?
- Who owns fixing it, and by what date?
- Have we checked for signs of attack since the first report, not just since the patch?
How it unfolded
- Attack activity. SEP 9, 2026CISA Vulnrichment marks CVE-2026-85102 as actively exploited
- Attack activity. SEP 21, 2026Check Point Multiple Products Improper Certificate Validation Vulnerability
- Attack activity. SEP 21, 2026Check Point Multiple Products Path Traversal Vulnerability
- Attack activity. SEP 22, 2026CISA Vulnrichment marks CVE-2026-93616 as actively exploited
- SEP 22, 20262 public GitHub repositories claim a proof of concept for CVE-2026-93616
- OCT 7, 20261 public GitHub repository claims a proof of concept for CVE-2026-85102
- OCT 13, 2026Vulnerability CVE-2026-93616 confirmed by a researcher (CIRCL sighting)
- NOV 2, 2026CVE-2026-85102 discussed publicly (CIRCL sighting) (2 reports)
SOURCES
- [1] nuclei-templates: Nuclei scan template: Check Point Security Management - Unauthenticated Directory Traversal to RCE, OCT 24
- [2] CIRCL Vulnerability-Lookup sightings: CVE-2026-85102 discussed publicly (CIRCL sighting), NOV 2
- [3] CIRCL Vulnerability-Lookup sightings: Vulnerability CVE-2026-93616 confirmed by a researcher (CIRCL sighting), OCT 13
- [4] PoC-in-GitHub: 1 public GitHub repository claims a proof of concept for CVE-2026-85102, OCT 7
- [5] PoC-in-GitHub: 2 public GitHub repositories claim a proof of concept for CVE-2026-93616, SEP 22
- [6] CVE List V5 and CISA Vulnrichment: CISA Vulnrichment marks CVE-2026-93616 as actively exploited, SEP 22
- [7] CISA Known Exploited Vulnerabilities: Check Point Multiple Products Improper Certificate Validation Vulnerability, SEP 21
- [8] CISA Known Exploited Vulnerabilities: Check Point Multiple Products Path Traversal Vulnerability, SEP 21
- [9] CVE List V5 and CISA Vulnrichment: CISA Vulnrichment marks CVE-2026-85102 as actively exploited, SEP 9
- [10] CIRCL Vulnerability-Lookup sightings: 1 more reports