CVE-2023-51363 — VR-S1000 firmware Ver

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
BUFFALO INC.	VR	S1000 — firmware Ver. 2.37 and earlier

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

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

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: 2023-12-26T07:30:12.168Z
• Last modified: 2024-08-02T22:32:09.188Z

09References

• www.buffalo.jp — https://www.buffalo.jp/news/detail/20231225-01.html
• jvn.jp — https://jvn.jp/en/jp/JVN23771490/