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Vulnerability record · CVE-2016-6518 · published 26 September 2016

CVE-2016-6518: Huawei s5300 firmware vulnerability

Huawei · S5300 Firmware

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.

7.5 CVSS 3.0 High EPSS 1.1% · top 35.0% CWE-399 · CWE-399
7.5CVSS 3.0 base score, v2 5.0
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
8Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

8 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160914-01-sep-en Vendor Advisory
http://www.securityfocus.com/bid/92968 Third Party AdvisoryVDB Entry
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160914-01-sep-en Vendor Advisory
http://www.securityfocus.com/bid/92968 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.6CVE-2019-5254Huawei ap2000 firmware out-of-bounds read vulnerabilityCertain Huawei products (AP2000;IPS Module;NGFW Module;NIP6300;NIP6600;NIP6800;S5700;SVN5600;SVN5800;SVN5800-C;SeMG9811;Secospace AntiDDoS8000;Secosp…EPSS 0.75%8.1CVE-2016-4087Huawei s12700 firmware improper input validation vulnerabilityHuawei S12700 switches with software before V200R008C00SPC500 and S5700 switches with software before V200R005SPH010, when the debug switch is enable…EPSS 1.5%7.5CVE-2021-37129Huawei ips module firmware out-of-bounds write vulnerabilityThere is an out of bounds write vulnerability in some Huawei products. The vulnerability is caused by a function of a module that does not properly v…EPSS 0.68%7.5CVE-2021-22357Huawei s12700 firmware improper input validation vulnerabilityThere is a denial of service vulnerability in Huawei products. A module cannot deal with specific messages due to validating inputs insufficiently. A…EPSS 0.70%7.5CVE-2021-22359Huawei s5700 firmware improper input validation vulnerabilityThere is a denial of service vulnerability in the verisions V200R005C00SPC500 of S5700 and V200R005C00SPC500 of S6700. An attacker could exploit this…EPSS 0.71%7.5CVE-2019-5304Huawei ar120-s firmware classic buffer overflow vulnerabilitySome Huawei products have a buffer error vulnerability. An unauthenticated, remote attacker could send specific MPLS Echo Request messages to the tar…EPSS 0.97%7.5CVE-2019-19397Huawei s12700 firmware vulnerabilityThere is a weak algorithm vulnerability in some Huawei products. The affected products use weak algorithms by default. Attackers may exploit the vuln…EPSS 0.76%7.5CVE-2019-5285Huawei s12700 firmware improper input validation vulnerabilitySome Huawei S series switches have a DoS vulnerability. An unauthenticated remote attacker can send crafted packets to the affected device to exploit…EPSS 1.7%

Source: NIST National Vulnerability Database (record CVE-2016-6518), CISA KEV, FIRST EPSS (scores of 2026-10-17). This page is refreshed as NVD updates the record.