CVE-2023-43478 - CVE House
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Status published High CVE-2023-43478

Unauthenticated configuration restore and firmware update

Vulnerability Description

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. 

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from Telstra

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CVE-2025-0697
Telstra Smart Modem Gen 2 HTTP Header injection
Medium 6.9
CVE-2023-43477
Post-Auth Command Injection in Telstra Smart Modem Gen 2 (Arcadyan LH1000)
Medium 6.8

Affected Vendor

Affected Software

Smart Modem Gen 2 (Arcadyan LH1000)
Vulnerable Versions:
0

Timeline

Official Publish: September 20th, 2023
Last Modified: September 24th, 2024
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.