CVE-2026-48132
The Security Gateway does not correctly validate a length value in certain IKE packets when NAT-T is used (4500/UDP).
Published May 26, 2026 · updated Jul 24, 2026
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, leading to denial of service (temporary interruption of VPN negotiations/traffic).
Code
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Timeline
Detection, updates, and resolution for this record.
May 26, 2026 · NIST NVD
Detected
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, leading to denial of service (temporary interruption of VPN negotiations/traffic).
Jul 24, 2026 · NIST NVD
Updated
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, leading to denial of service (temporary interruption of VPN negotiations/traffic).
Sources
- CVE.orgVulnerability recordCVE-2026-48132
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-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, leading to denial of service (temporary inter
nvd.nist.gov