Out-of-bounds Read in Checkpoint Quantum Security Gateway
CVE-2026-48132
The Security Gateway does not correctly validate a length value in certain IKE packets when NAT-T is used (4500/UDP). As a result, a specially crafted or malformed packet can cause the VPN processing service to terminate unexpectedly, lead…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (22.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
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-2026-48132?
- CVE-2026-48132 is a high-severity vulnerability in Checkpoint Quantum Security Gateway, classified under Out-of-bounds Read. CVSS score: 8.1/10. Published 2026-05-26.
- How severe is CVE-2026-48132?
- High severity. CVSS v3 base score is 8.1 out of 10.