CVE-2024-23486

Credential disclosure via plaintext password storage

Published Apr 15, 2024 · Updated Mar 18, 2025

Plaintext password storage in BUFFALO WSR-2533 router models allows network-adjacent remote attackers to obtain configured credentials. The affected firmware stores a configured password in plaintext and exposes it through the login page, but BUFFALO has not identified the responsible file or handler. Login-page reachability is required; Internet-based access additionally requires the Internet-side remote-access setting.

CVSS severity6.5
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Plaintext password storage in BUFFALO WSR-2533 router models allows network-adjacent remote attackers to obtain configured credentials. The affected firmware stores a configured password in plaintext and exposes it through the login page, but BUFFALO has not identified the responsible file or handler. Login-page reachability is required; Internet-based access additionally requires the Internet-side remote-access setting.

The record

CVE
CVE-2024-23486
Published
Apr 15, 2024
Updated
Mar 18, 2025
Vendor
BUFFALO INC.
Product
WSR-2533DHP2
Classifications
CWE-256, T1552
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 2025Record 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=0 <1.06
  2. Affected versionversion=firmware Ver. 1.10 and earlier

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

BUFFALO INC. · WSR-2533DHP2version=0 <1.06; version=firmware Ver. 1.10 and earlier
BUFFALO INC. · WSR-2533DHPversion=firmware Ver. 1.06 and earlier
BUFFALO INC. · WSR-A2533DHP2version=0 <1,06; version=0 <1.06; version=firmware Ver. 1.10 and earlier
BUFFALO INC. · WSR-2533DHPLversion=0 <1.06; version=firmware Ver. 1.06 and earlier

Published CVSS scores

6.5JPCERT/CCCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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-256Plaintext Storage of a Password
T1552Unsecured Credentials

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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