What is CVE-2023-51363?

CVE-2023-51363 is a medium-severity vulnerability in Buffalo Vr-S1000. CVSS score: 6.5/10. Published 2023-12-26.

How severe is CVE-2023-51363?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Buffalo Vr-S1000

CVE-2023-51363

VR-S1000 firmware Ver. 2.37 and earlier allows a network-adjacent unauthenticated attacker who can access the product's web management page to obtain sensitive information.

Published 2023-12-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (18.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Buffalo Vr-S1000
Buffalo Vr-S1000 Firmware
Buffalo Inc. Vr-S1000 — versions firmware Ver. 2.37 and earlier

References

www.buffalo.jp/news/detail/20231225-01.html (Patch, Vendor Advisory)
jvn.jp/en/jp/JVN23771490/ (Third Party Advisory)

Frequently asked questions

What is CVE-2023-51363?: CVE-2023-51363 is a medium-severity vulnerability in Buffalo Vr-S1000. CVSS score: 6.5/10. Published 2023-12-26.
How severe is CVE-2023-51363?: Medium severity. CVSS v3 base score is 6.5 out of 10.