checkpoint Quantum Security Gateway
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.
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 2 / 5
- KEV catalog (CISA)no
- Exploited in EUVD (ENISA)25 Sept 2026
- Used by ransomwareno
- EPSS above 10 %4.3%
- No account, over the networkyes
What to do
Fix
Apply the vendor’s fix as soon as it is available.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Affected products
- R82.10 with Jumbo Hotfix Take 43 or below
- R81.20 with Jumbo Hotfix Take 165 or below
- R82 with Jumbo Hotfix Take 125 or below
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
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Published
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Exploitation reported (ENISA)