CVE-2016-6518: Huawei s12700 Firmware

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

Memory leak in Huawei S9300, S5300, S5700, S6700, S7700, S9700, and S12700 devices allows remote attackers to cause a denial of service (memory consumption and restart) via a large number of malformed packets.

Affected products

• Huawei s12700 Firmware: version v200r005c00 only; version v200r006c00 only; version v200r008c00 only
• Huawei s5300 Firmware: version v200r001c00 only; version v200r002c00 only; version v200r003c00 only; version v200r005c00 only; version v200r005c01 only; version v200r005c02 only; …
• Huawei s5700 Firmware: version v200r001c00 only; version v200r001c01 only; version v200r002c00 only; version v200r003c00 only; version v200r003c02 only; version v200r005c00 only; …
• Huawei s6300 Firmware: version v200r001c00 only; version v200r002c00 only; version v200r003c00 only; version v200r005c00 only; version v200r005c01 only; version v200r005c02 only; …
• Huawei s6700 Firmware: version v200r001c00 only; version v200r001c01 only; version v200r002c00 only; version v200r003c00 only; version v200r008c00 only
• Huawei s7700 Firmware: version v200r001c00 only; version v200r002c00 only; version v200r003c00 only; version v200r005c00 only; version v200r006c00 only; version v200r008c00 only
• Huawei s9300 Firmware: version v200r001c00 only; version v200r003c00 only; version v200r005c00 only; version v200r006c00 only; version v200r008c00 only
• Huawei s9700 Firmware: version v200r001c00 only; version v200r001c01 only; version v200r002c00 only; version v200r003c00 only; version v200r005c00 only; version v200r006c00 only; …

Published 2016-09-26. Last modified 2026-06-17.