FlowmonOperating system · Progress

CVE-2026-2737

MEDIUM · 6.1 CVSS v3.1 Published 2026-04-02
Fix available
A fix is available. Upgrade to 12.5.8 / 13.0.6 or later.
See remediation →
68/100
Remediation priority · Elevated
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
A vulnerability exists in Progress Flowmon versions prior to 12.5.8 and 13.0.6, whereby an administrator who clicks a malicious link provided by an attacker may inadvertently trigger unintended actions within their authenticated web session.

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

This is a Cross-Site Request Forgery (CSRF) vulnerability in the Progress Flowmon web interface. An authenticated administrator who clicks a malicious link crafted by an attacker can have unintended actions executed within their authenticated session, potentially allowing the attacker to perform administrative actions via the victim's session.

MitigationUpdate Flowmon to version 12.5.8 or 13.0.6 or later to obtain the vendor patch. Additionally, administrators should avoid clicking untrusted links while authenticated.

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
FlowmonOperating system
Affected:>= 12.0.0, < 12.5.8>= 13.0.0, < 13.0.6

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
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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. Identify the installed Flowmon version
    Access the Flowmon administrative interface and navigate to the System Information or About page, typically found under Administration > System > Information or a similar path. Alternatively, check the version via the CLI if available using 'flowmon -v' or by examining installed package information.
    Affected if The installed version falls within the ranges >= 12.0.0 and < 12.5.8, or >= 13.0.0 and < 13.0.6.
  2. Confirm web interface accessibility
    Verify that the Flowmon web interface is accessible on the network. Attempt to reach the login page at the standard Flowmon URL (typically https://<hostname>/ or the configured web interface port).
    Affected if The web interface is exposed and reachable over HTTP/HTTPS.
  3. Verify administrative session state
    Log into the Flowmon web interface as an administrator and inspect the browser's developer tools (Network tab) when performing administrative actions such as creating a user, modifying system settings, or changing configurations.
    Affected if Administrative actions can be performed without triggering CSRF token validation in the requests.
  4. Check for CSRF token presence in admin actions
    Submit an administrative request (such as a settings change) and examine the HTTP request headers and body. Look for a CSRF token parameter or header (commonly named 'csrf_token', 'token', or 'X-CSRF-Token') in the request.
    Affected if Administrative HTTP requests lack CSRF protection tokens or do not validate them.

You are affected if your Flowmon version is between 12.0.0 and 12.5.7 inclusive, or between 13.0.0 and 13.0.5 inclusive, and the web interface is accessible to potential attackers who could craft malicious links for authenticated administrators to click.

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 12.5.8 / 13.0.6 or later
Fixed in 12.5.813.0.6
Interim mitigation

Update Flowmon to version 12.5.8 or 13.0.6 or later to obtain the vendor patch. Additionally, administrators should avoid clicking untrusted links while authenticated.

Recommended fix High confidence

Flowmon 12.5.8 or 13.0.6 (depending on current major version)

  1. Back up the current Flowmon configuration and any critical data
  2. Determine your current Flowmon major version (12.x or 13.x)
  3. Download Flowmon version 12.5.8 (if currently on 12.x branch) or version 13.0.6 (if currently on 13.x branch) from the official Progress Flowmon download repository
  4. Install the downloaded upgrade following the standard Flowmon upgrade procedure
  5. After upgrade, verify the web interface is accessible and functioning normally
  6. Confirm the administrator account can log in successfully
Caveat Minor version upgrades typically maintain backward compatibility; review release notes for any minor configuration changes

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

Fix this in Flowmon Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,420
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2026-2737 — 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-2026-2737 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