Hard-coded CredentialsWeakness · CWE-798

CVE-2026-24448

CRITICAL · 9.8 CVSS v3.0 Published 2026-03-11
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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
Use of hard-coded credentials issue exists in MR-GM5L-S1 and MR-GM5A-L1, which may allow an attacker to obtain administrative access.

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 · moderate confidence

Hard-coded credentials embedded in the firmware of MR-GM5L-S1 and MR-GM5A-L1 devices allow remote attackers to obtain administrative access. These credentials are static and cannot be changed by administrators, providing a backdoor into affected systems.

MitigationApply vendor firmware updates when available to remove hard-coded credentials; if no patch exists, implement network segmentation, disable unnecessary remote access, and monitor for unauthorized administrative access attempts.

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

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
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/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 device model
    Check the device label, web interface, or SNMP sysDescr for model number MR-GM5L-S1 or MR-GM5A-L1
    Affected if Device model is MR-GM5L-S1 or MR-GM5A-L1 and firmware has not been updated
  2. Check firmware version
    Access device web interface or use SNMP to query firmware version; compare against any vendor release notes
    Affected if Firmware version is older than the latest vendor release that addresses hard-coded credentials
  3. Verify remote access configuration
    Check device network settings for enabled remote management interfaces (HTTP/HTTPS, Telnet, SSH, VPN) accessible from untrusted networks
    Affected if Remote administrative access is enabled and exposed to untrusted networks
  4. Test for default credential access
    Attempt to authenticate using commonly documented hard-coded credential pairs for the device; consult vendor documentation or security advisories for any published backdoor credentials
    Affected if Authentication succeeds with credentials that cannot be changed by the administrator
  5. Review administrator accounts
    Check device user management page to see if any accounts are marked as immutable, system-reserved, or cannot be disabled/deleted
    Affected if One or more administrative accounts exist that cannot be modified or removed by local administrators

If the device is an MR-GM5L-S1 or MR-GM5A-L1 model with remote access enabled and contains administrator accounts that cannot be modified, the environment is affected by this hard-coded credential vulnerability.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor firmware updates when available to remove hard-coded credentials; if no patch exists, implement network segmentation, disable unnecessary remote access, and monitor for unauthorized administrative access attempts.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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Scan for this in your stack

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dbcve dependency scanner

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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-2026-24448 in production — separate from our analysis above.

No notes yet

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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
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