CVE-2023-51363

Unauthenticated sensitive-information disclosure

Published Dec 26, 2023 · Updated Aug 2, 2024

Information disclosure in BUFFALO VR-S1000 firmware 2.37 and earlier allows remote attackers to obtain sensitive information. BUFFALO has not disclosed the affected web-management component, the request that triggers the flaw, or the operation that exposes data. Exploitation requires unauthenticated access from an adjacent network to the web management page; no integrity or availability impact is reported.

CVSS severity6.5
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in BUFFALO VR-S1000 firmware 2.37 and earlier allows remote attackers to obtain sensitive information. BUFFALO has not disclosed the affected web-management component, the request that triggers the flaw, or the operation that exposes data. Exploitation requires unauthenticated access from an adjacent network to the web management page; no integrity or availability impact is reported.

The record

CVE
CVE-2023-51363
Published
Dec 26, 2023
Updated
Aug 2, 2024
Vendor
BUFFALO INC.
Product
VR-S1000
Classifications
CWE-200
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=firmware Ver. 2.37 and earlier

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

BUFFALO INC. · VR-S1000version=firmware Ver. 2.37 and earlier

Published CVSS scores

3.3JPCERT/CCAV:A/AC:L/Au:N/C:P/I:N/A:N
6.5JPCERT/CCCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
6.5NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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