Buffer overflow in Checkpoint Quantum Security Gateway
CVE-2026-48135
A Check Point HTTP-based service can incorrectly handle malformed HTTP requests. The issue is related to HTTP request parsing and validation.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.004 (33.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.004 · change: -0.022
Affected products
- Checkpoint Quantum Security Gateway — versions R82.10 with Jumbo Hotfix Take 6 or below, R82 with Jumbo Hotfix Take 91 or below, R81.20 with Jumbo Hotfix Take 127 or below
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-48135?
- CVE-2026-48135 is a medium-severity vulnerability in Checkpoint Quantum Security Gateway, classified under Heap-based Buffer Overflow. CVSS score: 5.3/10. Published 2026-05-26.
- How severe is CVE-2026-48135?
- Medium severity. CVSS v3 base score is 5.3 out of 10.