Home/CVE/Some Huawei products have a buffer error vulnerability. An unauthenticated, remote attacker could send specific MPLS Ech
CVE

CVE-2019-5304

Some Huawei products have a buffer error vulnerability. An unauthenticated, remote attacker could send specific MPLS Ech

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.

HIGH · CVSS 7.5 EPSS 0.0024
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
▤

Affected Products & Versions

11
huawei ar120-s firmwareall versions
huawei ar1200 firmwareall versions
huawei ar1200-s firmwareall versions
huawei ar150 firmwareall versions
huawei ar150-s firmwareall versions
huawei ar160 firmwareall versions
huawei ar200 firmwareall versions
huawei ar200-s firmwareall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · psirt@huawei.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD03 Jan 2020 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200102-01-buffer-enVendor Advisory
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