CVE-2023-43477

Arcadyan Lh1000 Firmware vulnerability

CVSS

6.8

EPSS

15.7%

EPSS pct

97th

Exploited

No known

The ping_from parameter of ping_tracerte.cgi in the web UI of Telstra Smart Modem Gen 2 (Arcadyan LH1000), firmware versions < 0.18.15r, was not properly sanitized before being used in a system call, which could allow an authenticated attacker to achieve command injection as root on the device.

Affected vendor

Telstra

Affected product

Arcadyan Lh1000 Firmware

CVSS vector

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

Weakness type (CWE)

CWE-77 — Command Injection

Published

2023-09-20

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable from an adjacent network, low attack complexity, requiring high privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 15.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2023-43477

Confirm whether Telstra Arcadyan Lh1000 Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2023-43477.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-43477

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