What is CVE-2024-26023?

CVE-2024-26023 is a medium-severity vulnerability in Buffalo Wcr-1166ds, classified under OS Command Injection. CVSS score: 4.2/10. Published 2024-04-15.

How severe is CVE-2024-26023?

Medium severity. CVSS v3 base score is 4.2 out of 10.

RCE in Buffalo Wcr-1166ds

CVE-2024-26023

OS command injection vulnerability in BUFFALO wireless LAN routers allows a logged-in user to execute arbitrary OS commands.

Vulnerability class: Command Injection (OS Command Injection)

Published 2024-04-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.005 (44.0th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

www.buffalo.jp/news/detail/20240410-01.html (Vendor Advisory)
jvn.jp/en/jp/JVN58236836/ (Third Party Advisory)

Frequently asked questions

What is CVE-2024-26023?: CVE-2024-26023 is a medium-severity vulnerability in Buffalo Wcr-1166ds, classified under OS Command Injection. CVSS score: 4.2/10. Published 2024-04-15.
How severe is CVE-2024-26023?: Medium severity. CVSS v3 base score is 4.2 out of 10.