CloudEngine 12800 products with versions of V200R019C00, V200R019C10SPC800, V200R019C00SPC600, V200R019C10; and CloudEngine 6800 products with versions of V200R019C00SPC800 have a denial of service vulnerability. Due to improper memory management, memory leakage may occur in some special cases. Attackers can perform a series of operations to exploit this vulnerability. Successful exploit may cause a denial of service.