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Vulnerability record · CVE-2019-5304 · published 3 January 2020

CVE-2019-5304: Huawei ar120-s firmware classic buffer overflow vulnerability

Huawei · Ar120 S Firmware

Some Huawei products have a buffer error vulnerability. An unauthenticated, remote attacker could send specific MPLS Echo Request messages to the target products. Due to insufficient input validation of some parameters in the messages, successful exploit may cause the device to reset.

7.5 CVSS 3.1 High EPSS 0.97% · top 38.8% CWE-120 · Classic buffer overflow
7.5CVSS 3.1 base score, v2 7.8
0.97%EPSS exploitation probability, 30 days
NoNot in CISA KEV
26Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Some Huawei products have a buffer error vulnerability. An unauthenticated, remote attacker could send specific MPLS Echo Request messages to the target products. Due to insufficient input validation of some parameters in the messages, successful exploit may cause the device to reset.

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

Affected products

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

References

LinkTags
https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200102-01-buffer-en Vendor Advisory
https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200102-01-buffer-en Vendor Advisory

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Related vulnerabilities

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

9.8CVE-2017-17301Huawei ar120-s firmware improper certificate validation vulnerabilityHuawei AR120-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, AR1200 V200R005C20, V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C0…EPSS 0.97%7.5CVE-2019-19416Huawei ar120-s firmware improper input validation vulnerabilityThe SIP module of some Huawei products have a denial of service (DoS) vulnerability. A remote attacker could exploit these three vulnerabilities by s…EPSS 0.88%7.5CVE-2019-19417Huawei ar120-s firmware improper input validation vulnerabilityThe SIP module of some Huawei products have a denial of service (DoS) vulnerability. A remote attacker could exploit these three vulnerabilities by s…EPSS 0.88%7.5CVE-2019-19415Huawei ar120-s firmware improper input validation vulnerabilityThe SIP module of some Huawei products have a denial of service (DoS) vulnerability. A remote attacker could exploit these three vulnerabilities by s…EPSS 0.88%7.5CVE-2019-5294Huawei ar120-s firmware out-of-bounds read vulnerabilityThere is an out of bound read vulnerability in some Huawei products. A remote, unauthenticated attacker may send a corrupt or crafted message to the …EPSS 0.93%7.5CVE-2017-17254Huawei ar120-s firmware null pointer dereference vulnerabilityHuawei AR120-S V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR1200 V200R006C10, V200R006C13, V200R007C00, V200R007C01, V200R007C02, V200R008C2…EPSS 1.2%7.5CVE-2017-17257Huawei ar120-s firmware vulnerabilityHuawei AR120-S V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR1200 V200R006C10, V200R006C13, V200R007C00, V200R007C01, V200R007C02, V200R008C2…EPSS 1.3%7.5CVE-2017-17255Huawei ar120-s firmware null pointer dereference vulnerabilityHuawei AR120-S V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR1200 V200R006C10, V200R006C13, V200R007C00, V200R007C01, V200R007C02, V200R008C2…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2019-5304), CISA KEV, FIRST EPSS (scores of 2026-10-16). This page is refreshed as NVD updates the record.