Actively exploited in the wild. This CVE is on the CISA Known Exploited Vulnerabilities list — treat remediation as urgent. Federal remediation due by 7 Aug 2024.
Serv UApplication · Solarwinds

CVE-2024-28995

HIGH · 7.5 CVSS v3.1 Published 2024-06-06
Fix available
A fix is available. Upgrade to 15.4.2 or later.
See remediation →
100/100
Remediation priority · Urgent
In the wild High EPSS 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
SolarWinds Serv-U was susceptible to a directory transversal vulnerability that would allow access to read sensitive files on the host machine.

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

SolarWinds Serv-U contains a directory traversal vulnerability that allows authenticated or unauthenticated attackers to escape the intended directory and read sensitive files on the host machine by manipulating file path references using '..' sequences.

MitigationApply the vendor-supplied patch or update to SolarWinds Serv-U immediately. If patching is delayed, restrict network access to the Serv-U service and implement strict file system permissions as a temporary compensating control.

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
Serv UApplication
Affected:< 15.4.2= 15.4.2

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. Identify installed Serv-U version
    Check the SolarWinds Serv-U installation - typically via Windows Programs and Features, or run 'Serv-UAdmin.exe' and view the About/version information. On Linux, check /usr/local/serv-u or the installation directory for version files.
    Affected if The installed version is any version prior to 15.4.2, or exactly version 15.4.2 (versions < 15.4.2 or = 15.4.2 are vulnerable)
  2. Verify Serv-U HTTP service is running and exposed
    Check if the Serv-U web administration interface or file transfer service is listening on its HTTP/HTTPS ports (typically ports 80, 443, or 8080). Use 'netstat -an | findstr LISTENING' or similar to identify listening ports, or check the Serv-U service status.
    Affected if The Serv-U HTTP service is running and accessible from network locations (not localhost-only or firewalled)
  3. Confirm network accessibility of Serv-U
    Determine if the Serv-U service is bound to all network interfaces (0.0.0.0) versus localhost only (127.0.0.1). Review any firewall rules or network ACLs that may allow external access to the Serv-U ports.
    Affected if The Serv-U HTTP interface is reachable from untrusted networks or the internet without proper access controls
  4. Review Serv-U logs for path traversal attempts
    Examine Serv-U logs (typically in the Serv-U logs directory) for suspicious path traversal patterns in HTTP requests, such as sequences containing '../' or '..\' directed at sensitive system paths.
    Affected if Log analysis reveals any path traversal attempts (../) in HTTP requests, indicating potential exploitation attempts

You are affected if your Serv-U installation is version 15.4.2 or any version prior to 15.4.2 AND the HTTP service is network-accessible, regardless of whether exploitation has occurred.

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 15.4.2 or later
Fixed in 15.4.2
Interim mitigation

Apply the vendor-supplied patch or update to SolarWinds Serv-U immediately. If patching is delayed, restrict network access to the Serv-U service and implement strict file system permissions as a temporary compensating control.

Recommended fix Moderate confidence

Serv-U version greater than 15.4.2 (contact SolarWinds for the specific fixed release)

  1. 1. Identify the current Serv-U version by checking the Serv-U administration interface or using the command line: Serv-U -v or checking the installation directory for version information
  2. 2. Back up all Serv-U configuration files, user data, and settings before proceeding with the upgrade
  3. 3. Download the latest version of Serv-U from the official SolarWinds download portal at https://www.solarwinds.com/
  4. 4. Stop the Serv-U service before applying the upgrade: net stop Serv-U or through the Services console
  5. 5. Install the upgraded version of Serv-U, ensuring to preserve existing configuration settings during installation
  6. 6. Start the Serv-U service after installation completes: net start Serv-U or through the Services console
  7. 7. Verify the upgrade was successful by checking the Serv-U version again and confirming it is greater than 15.4.2
  8. 8. Test that file transfer functionality and the Serv-U web interface are functioning normally
Caveat Review SolarWinds release notes for version-specific changes; minor version upgrades typically maintain configuration compatibility but regression testing is recommended

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

Fix this in Serv U Exploited in the wild — priority engagement
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,750
Get it fixed fast

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2024-28995 — 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-2024-28995 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

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