VDB
CVE-2026-87665
CVE-2026-87665
PUBLISHED
CVSS 6 MEDIUM
Reported by brocade · Published October 8, 2026
A stack-based buffer overflow vulnerability exists in the Internet Key Exchange (IKEv2) protocol handler on Brocade Fabric OS versions before 10.0.1. The vulnerability occurs when processing initial IKE key exchange requests on extension switches or blades running IPsec-enabled Fibre Channel over IP (FCIP) circuits. An unauthenticated remote attacker can exploit this vulnerability by sending a single, specifically crafted UDP packet (Port 500) containing an oversized Nonce payload. Successful exploitation results in a denial of service (data-plane process crash)
Risk Scores
CVSS 4.0
6
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Brocade | Fabric OS | 0 |
| Brocade | Fabric OS | 0 |
Timeline
- Oct 8, 2026 EPSS Score
- Oct 8, 2026 CVE Published
- Oct 8, 2026 CVE Updated
- Oct 11, 2026 EPSS Score
- Oct 14, 2026 EPSS Score