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Wrc 2533gs2 B FirmwareOperating system · Elecom

CVE-2024-40883

HIGH · 8.8 CVSS v3.1 Published 2024-08-01
Fix available
A fix is available. Upgrade to 1.12 / 1.69 or later.
See remediation →
95/100
Remediation priority · Urgent
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Cross-site request forgery vulnerability exists in ELECOM wireless LAN routers. Viewing a malicious page while logging in to the affected product with an administrative privilege, the user may be directed to perform unintended operations such as changing the login ID, login password, etc.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

CSRF vulnerability in ELECOM wireless LAN routers allows attackers to trick authenticated administrators into unknowingly executing configuration changes (credential modifications, etc.) via malicious web pages that send forged requests to the router's admin interface.

MitigationImplement anti-CSRF tokens in all router admin forms and validate origin/referer headers; users should avoid browsing untrusted sites while logged into router admin panels.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Wrc 2533gs2 B FirmwareOperating system
Affected:< 1.69
Wrc 2533gs2 W FirmwareOperating system
Affected:< 1.69
Wrc 2533gs2v B FirmwareOperating system
Affected:< 1.69
Wrc X6000xs G FirmwareOperating system
Affected:< 1.12
Wrc X1500gs B FirmwareOperating system
Affected:< 1.12
Wrc X1500gsa B FirmwareOperating system
Affected:< 1.12

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify router model
    Locate the physical device label on the ELECOM router or access the admin interface to view the model name (typically accessed via http://192.168.0.1 or http://192.168.1.1)
    Affected if Model is one of: Wrc 2533gs2 B, Wrc 2533gs2 W, Wrc 2533gs2v B, Wrc X6000xs G, Wrc X1500gs B, or Wrc X1500gsa B
  2. Check firmware version
    Log into the router admin interface, navigate to the System or Status section, and locate the firmware version information. Alternatively, check the device label or documentation for the installed firmware version.
    Affected if Firmware version is below 1.69 for Wrc 2533 models, or below 1.12 for Wrc X6000xs G, Wrc X1500gs B, or Wrc X1500gsa B models
  3. Verify admin interface accessibility
    Confirm the router admin interface is reachable on the local network. CSRF attacks require an authenticated administrator session, so determine if the admin panel is accessible (even on LAN) and whether sessions remain active after login.
    Affected if Admin interface is accessible and active sessions can be established, making CSRF exploitation possible
  4. Check for concurrent network exposure
    Review router network settings to determine if the admin interface is exposed beyond the local network (such as via WAN/remote management features), which increases the attack surface for CSRF attacks.
    Affected if Remote administration or WAN access to the admin interface is enabled, allowing potential CSRF attacks from external networks

You are affected if you are running any of the listed ELECOM router models with firmware versions below 1.69 (for Wrc 2533 series) or below 1.12 (for Wrc X6000xs and X1500 series), and the admin interface is accessible to authenticated administrators.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 1.12 / 1.69 or later
Fixed in 1.121.69
Interim mitigation

Implement anti-CSRF tokens in all router admin forms and validate origin/referer headers; users should avoid browsing untrusted sites while logged into router admin panels.

Recommended fix High confidence

Firmware 1.69 for Wrc 2533gs2 series; Firmware 1.12 for Wrc X6000xs G and Wrc X1500 series

  1. 1. Identify the exact model of your ELECOM wireless router from the affected list (Wrc 2533gs2 B, Wrc 2533gs2 W, Wrc 2533gs2v B, Wrc X6000xs G, Wrc X1500gs B, or Wrc X1500gsa B)
  2. 2. Access the router's web administration interface using an administrative account
  3. 3. Navigate to the firmware update or system settings section
  4. 4. Download the appropriate firmware version from ELECOM's official support website (www.elecom.co.jp) - version 1.69 for Wrc 2533gs2 series or version 1.12 for Wrc X6000xs G and Wrc X1500gs B/X1500gsa B
  5. 5. Upload and apply the firmware update through the router's web interface
  6. 6. After the update completes, verify the new firmware version matches the fixed release
  7. 7. Clear browser session cookies and re-authenticate to the router

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Wrc 2533gs2 B Firmware Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing8.0 h
  • Review / QA4.0 h
36.0 hours of engineering $6,400
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-40883 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data