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Vulnerability record · CVE-2019-19397 · published 13 December 2019

CVE-2019-19397: Huawei s12700 firmware vulnerability

Huawei · S12700 Firmware

There is a weak algorithm vulnerability in some Huawei products. The affected products use weak algorithms by default. Attackers may exploit the vulnerability to cause information leaks.

7.5 CVSS 3.1 High EPSS 0.76% · top 45.6%
7.5CVSS 3.1 base score, v2 5.0
0.76%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

There is a weak algorithm vulnerability in some Huawei products. The affected products use weak algorithms by default. Attackers may exploit the vulnerability to cause information leaks.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

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

References

LinkTags
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191204-01-vrp-en Vendor Advisory
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191204-01-vrp-en Vendor Advisory

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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 0.70%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-2019-5285Huawei 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%7.5CVE-2016-8786Huawei s12700 firmware improper input validation vulnerabilityHuawei S12700 V200R005C00, V200R006C00, V200R007C00, V200R008C00, S5700 V200R006C00, V200R007C00, V200R008C00, S6700 V200R008C00, S7700 V200R001C00, …EPSS 1.7%

Source: NIST National Vulnerability Database (record CVE-2019-19397), CISA KEV, FIRST EPSS (scores of 2026-10-14). This page is refreshed as NVD updates the record.