TelemessageApplication · Smarsh

CVE-2025-48929

CRITICAL · 9.8 CVSS v3.1 Published 2025-05-28
Fix available
A fix is available. Upgrade to after 2025-05-05 or later.
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
The TeleMessage service through 2025-05-05 implements authentication through a long-lived credential (e.g., not a token with a short expiration time) that can be reused at a later date if discovered by an adversary.

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

The TeleMessage service uses long-lived authentication credentials (static passwords or API keys without expiration) instead of short-lived tokens. If these credentials are discovered by an attacker through any means (log leakage, traffic interception, database breach, etc.), they can be reused indefinitely to authenticate to the service, providing persistent unauthorized access.

MitigationReplace long-lived credentials with short-lived, rotating tokens (e.g., OAuth access tokens, JWTs with expiration) and implement token refresh, rotation, and revocation mechanisms to limit the window of opportunity for credential reuse attacks.

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
TelemessageApplication
Affected:<= 2025-05-05

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:3.1/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 Smarsh Telemessage installation
    Locate Smarsh Telemessage in your environment - check installed software, running services, application directories, or system documentation for presence of this product
    Affected if Smarsh Telemessage is present in the environment
  2. Determine installed version
    Obtain the installed version of Smarsh Telemessage (typically via software inventory, application metadata, version file, or vendor documentation) and compare to the affected version <= 2025-05-05
    Affected if Version is 2025-05-05 or earlier
  3. Review authentication configuration
    Examine the authentication configuration for Smarsh Telemessage - check configuration files, admin console settings, or API documentation for credential type settings to identify if static passwords or API keys are in use
    Affected if Static passwords or API keys without expiration are configured as authentication method
  4. Verify credential lifecycle settings
    Inspect credential management settings within Smarsh Telemessage to determine if passwords or API keys have expiration dates, rotation requirements, or token refresh mechanisms configured
    Affected if No expiration, rotation, or refresh mechanisms are defined for the authentication credentials

Environment is affected if Smarsh Telemessage version is 2025-05-05 or earlier AND static long-lived credentials (passwords or API keys without expiration) are in use for authentication

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
Upgrade available Upgrade to a release after 2025-05-05
Interim mitigation

Replace long-lived credentials with short-lived, rotating tokens (e.g., OAuth access tokens, JWTs with expiration) and implement token refresh, rotation, and revocation mechanisms to limit the window of opportunity for credential reuse attacks.

Fix this in Telemessage Scoped from the published advisory
  • Consultation6.0 h
  • Implementation24.0 h
  • Testing12.0 h
  • Review / QA6.0 h
48.0 hours of engineering $8,400
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $13,440.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-48929 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

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-2025-48929 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