dbcve.org
Yealink Meeting ServerApplication · Yealink

CVE-2024-48353

HIGH · 7.5 CVSS v3.1 Published 2024-11-01
Fix available
A fix is available. Upgrade to 26.0.0.67 or later.
See remediation →
84/100
Remediation priority · High
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
Yealink Meeting Server before V26.0.0.67 allows attackers to obtain static key information from a front-end JS file and decrypt the plaintext passwords based on the obtained key information.

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

Yealink Meeting Server versions prior to V26.0.0.67 embed static encryption keys directly in front-end JavaScript files. Attackers can extract these hardcoded keys from the client-side code and use them to decrypt stored password ciphertext, compromising credential confidentiality.

MitigationUpgrade Yealink Meeting Server to version V26.0.0.67 or later, which removes hardcoded cryptographic keys and implements proper key management.

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
Yealink Meeting ServerApplication
Affected:< 26.0.0.67

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
None
Availability
None

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

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. Determine the installed Yealink Meeting Server version
    Access the admin interface or system information page. Typically found under 'System' > 'About' or 'System' > 'Status'. Alternatively, check the login page source or HTTP headers for version information.
    Affected if The displayed version is earlier than V26.0.0.67 (e.g., V25.x.x, V24.x.x, etc.)
  2. Compare the version against the affected range
    Document the exact version number found in the previous step. Cross-reference with the vendor's version history or release notes if available.
    Affected if The version string does not start with 'V26.0.0.67' or higher; specifically any version below V26.0.0.67 indicates exposure to the hardcoded key vulnerability
  3. Inspect front-end JavaScript files for hardcoded encryption keys
    Use browser developer tools or fetch the main JavaScript files served by the Yealink Meeting Server. Search for string patterns resembling encryption keys, such as 'AES', 'DES', 'key', 'secret', 'crypto', or base64-encoded strings of 16-32 bytes.
    Affected if Hardcoded cryptographic keys, IVs, or secret values are found embedded in the JavaScript code, confirming the vulnerability is present
  4. Verify if stored credentials or sensitive data exist in the system
    Check whether user accounts, passwords, or other sensitive credentials are stored within the Yealink Meeting Server environment.
    Affected if User credentials or sensitive data are stored in the system and the version is below V26.0.0.67, meaning the hardcoded keys could be used to decrypt them

The environment is affected if the installed Yealink Meeting Server version is any release prior to V26.0.0.67, as these versions contain extractable hardcoded encryption keys in client-side JavaScript files that can decrypt stored credentials.

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 26.0.0.67 or later
Fixed in 26.0.0.67
Interim mitigation

Upgrade Yealink Meeting Server to version V26.0.0.67 or later, which removes hardcoded cryptographic keys and implements proper key management.

Recommended fix High confidence

V26.0.0.67

  1. Obtain the Yealink Meeting Server V26.0.0.67 upgrade package from the official Yealink website or authorized distribution channel
  2. Review the official Yealink upgrade documentation for V26.0.0.67
  3. Create a complete backup of the current Yealink Meeting Server configuration and all data
  4. Follow Yealink's documented upgrade procedure to apply V26.0.0.67
  5. After upgrading, verify the vulnerability is resolved by confirming the static key is no longer exposed in frontend JavaScript files
  6. Test that the Meeting Server functionality operates normally post-upgrade

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

Fix this in Yealink Meeting Server Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA4.0 h
20.0 hours of engineering $3,560
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,696.

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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-2024-48353 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
  • No spam, self-promotion, credentials, or personal data