CVE-2023-40069
CWE-78Published: August 18, 2023· Updated: Jun 17, 2026
Official Description
OS command injection vulnerability in ELECOM wireless LAN routers allows an attacker who can access the product to execute an arbitrary OS command by sending a specially crafted request. Affected products and versions are as follows: WRC-F1167ACF all versions, WRC-1750GHBK all versions, WRC-1167GHBK2 all versions, WRC-1750GHBK2-I all versions, and WRC-1750GHBK-E all versions.
Risk Analysis
Multiple ELECOM wireless LAN routers are susceptible to OS command injection, allowing an attacker to execute arbitrary commands by sending a specially crafted request. The vulnerability is rated critical with a 9.8 CVSS score due to the ease of remote exploitation.
No public exploit is known for this vulnerability, and it is not in the CISA KEV catalog. The flaw is remotely exploitable with low complexity.
Apply the latest firmware updates provided by ELECOM for the affected router models. Disable remote management access to the router to reduce the attack surface.
Technical Analysis
CVE-2023-40069 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (4)
Quick Facts
Related CVEs (CWE-78)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-40069 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts