CVE-2019-18370
CVE-2019-18370 is a critical-severity vulnerability in Mi Millet Router 3g Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 40% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 40% (99th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Mi Millet Router 3g Firmware
- Published:
- Last modified:
Description
An issue was discovered on Xiaomi Mi WiFi R3G devices before 2.28.23-stable. The backup file is in tar.gz format. After uploading, the application uses the tar zxf command to decompress, so one can control the contents of the files in the decompressed directory. In addition, the application's sh script for testing upload and download speeds reads a URL list from /tmp/speedtest_urls.xml, and there is a command injection vulnerability, as demonstrated by api/xqnetdetect/netspeed.
Frequently asked questions
- What is CVE-2019-18370?
- An issue was discovered on Xiaomi Mi WiFi R3G devices before 2.28.23-stable. The backup file is in tar.gz format. After uploading, the application uses the tar zxf command to decompress, so one can control the contents of the files in the decompressed directory. In addition, the application's sh script for testing upload and download speeds reads a URL list from /tmp/speedtest_urls.xml, and there is a command injection vulnerability, as demonstrated by api/xqnetdetect/netspeed.
- How severe is CVE-2019-18370?
- CVE-2019-18370 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2019-18370 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 40% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-18370?
- CVE-2019-18370 affects Mi Millet Router 3g Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2019-18370?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2019-18370 published?
- CVE-2019-18370 was published on 2019-10-23 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:mi:millet_router_3g_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Mi Millet Router 3g Firmware
- CVE-2019-18371 — High (CVSS 7.5): An issue was discovered on Xiaomi Mi WiFi R3G devices before 2.28.23-stable. There is a directory traversal…
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