Quick answers
- Is CVE-2026-48132 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-48132 being exploited in the wild.
- How severe is CVE-2026-48132?
- High severity, with a CVSS score of 7.4, published 26 May 2026.
- Which products and versions are affected?
- Check Point Security Gateway.
- Is there a fix for CVE-2026-48132?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-48132 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-48132?
- Check whether you run Check Point Security Gateway. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An out-of-bounds read vulnerability (CWE-125) exists in the VPN processing service of Check Point Security Gateways. The flaw is rooted in the improper validation of length fields within Internet Key Exchange (IKE) packets when encapsulated for NAT Traversal (NAT-T) on UDP port 4500. A remote, unauthenticated attacker can exploit this by sending specially crafted or malformed IKE packets. Successful exploitation causes the VPN service to terminate unexpectedly, resulting in a denial of service (DoS) for VPN negotiations and existing traffic until the service restarts.
Affected products
- Check Point Security Gateway
Timeline
- 2026-05-26: advisory: Initial advisory published by Check Point and NVD record created.