CVE-2023-39944 — OS command injection vulnerability in WRC-F1167ACF all versions, and WRC-1750GHB

OS command injection vulnerability in WRC-F1167ACF all versions, and WRC-1750GHBK all versions allows an attacker who can access the product to execute an arbitrary OS command by sending a specially crafted request.

01What is this vulnerability?

OS command injection vulnerability in WRC-F1167ACF all versions, and WRC-1750GHBK all versions allows an attacker who can access the product to execute an arbitrary OS command by sending a specially crafted request.

02Affected products

Vendor	Product	Versions
ELECOM CO.,LTD.	WRC	F1167ACF — all versions
ELECOM CO.,LTD.	WRC	1750GHBK — all versions

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-08-18T09:43:35.233Z
• Last modified: 2024-10-08T14:37:06.331Z

09References

• www.elecom.co.jp — https://www.elecom.co.jp/news/security/20230810-01/
• jvn.jp — https://jvn.jp/en/vu/JVNVU91630351/