Arbitrary file upload in Telstra Arcadyan Lh1000

CVE-2023-43478

fake_upload.cgi on the Telstra Smart Modem Gen 2 (Arcadyan LH1000), firmware versions < 0.18.15r, allows unauthenticated attackers to upload firmware images and configuration backups, which could allow them to alter the firmware or the configuration on the device, ultimately leading to code execution as root.

Vulnerability class: Unrestricted File Upload

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.180 (97.1th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-43478: rose from 0.174 to 0.180.

EPSS over last 30 days · oldest: 0.174 · newest: 0.180 · change: +0.005

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-43478?
CVE-2023-43478 is a high-severity vulnerability in Telstra Arcadyan Lh1000, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2023-09-20.
How severe is CVE-2023-43478?
High severity. CVSS v3 base score is 8.8 out of 10.