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Actively exploited

CVE-2024-28987 SolarWinds Web Help Desk Hardcoded Credential Vulnerability

SolarWinds Web Help Desk contains a hardcoded credential vulnerability that could allow a remote, unauthenticated user to access internal functionality and modify data.

From the CISA KEV catalogue version 2026.11.06, with Cybergen analysis. Updated 6 Nov 2026.

Our Assessment

Should You Worry?

Patch nowCybergen assessment
  • CISA confirmed exploitation in the wild and added it to the Known Exploited Vulnerabilities catalogue on 15 Oct 2024.
  • Rated Critical severity (CVSS 9.1, scored by Vendor).
  • It has been in the catalogue for 752 days. Systems still unpatched now have almost certainly been scanned for it.
The Vulnerability

What It Is

The SolarWinds Web Help Desk (WHD) software is affected by a hardcoded credential vulnerability, allowing remote unauthenticated user to access internal functionality and modify data.

Affected Versions

ProductVersions
SolarWinds Web Help Desk12.8.3 Hotfix 1 and previous versions

From the public CVE record, as supplied by the vendor. Always confirm against the vendor advisory.

From Watch to Action

What To Do Now

  1. 1

    Find it

    Search your asset inventory and external attack surface for SolarWinds Web Help Desk. Include cloud images, appliances and anything a supplier runs for you.

    Attack Surface Management
  2. 2

    Fix it

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

    Vulnerability Management
  3. 3

    Hunt for compromise

    If an affected system was reachable before you patched, assume it may have been hit. Check logs, new accounts, web shells and outbound connections from the date of exposure.

    Incident Response
  4. 4

    Prove it is fixed

    Rescan or test the system after patching. Upgrades that fail silently and forgotten secondary instances are common.

    Penetration Testing

Vendor Advisories

Regulation

The Compliance Clock

Cyber EssentialsRated critical, so if it affects devices in your Cyber Essentials scope, the update must be installed within 14 days of the vendor releasing it.NIS2If exploitation causes a significant incident, essential and important entities owe their CSIRT an early warning within 24 hours and a notification within 72 hours.DORAFinancial entities must classify ICT incidents and send an initial notification for a major incident within strict deadlines, with exploited flaws a common cause.US federal (BOD 22-01)Federal civilian agencies had until 5 Nov 2024 to remediate. A sensible benchmark for everyone else.

General guidance, not legal advice. Your obligations depend on your sector, scope and jurisdiction.

Stay Ahead

More Exploited SolarWinds Flaws

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CVE-2026-28318SolarWinds Serv-U Uncontrolled Resource Consumption VulnerabilityAdded 5 Jun 2026CVE-2025-26399 · RansomwareSolarWinds Web Help Desk Deserialization of Untrusted Data VulnerabilityAdded 9 Mar 2026CVE-2025-40536SolarWinds Web Help Desk Security Control Bypass VulnerabilityAdded 12 Feb 2026CVE-2025-40551SolarWinds Web Help Desk Deserialization of Untrusted Data VulnerabilityAdded 3 Feb 2026CVE-2024-28986SolarWinds Web Help Desk Deserialization of Untrusted Data VulnerabilityAdded 15 Aug 2024CVE-2024-28995SolarWinds Serv-U Path Traversal Vulnerability Added 17 Jul 2024

All 11 exploited SolarWinds vulnerabilities

Not Sure If You Are Exposed?

Our attack surface and vulnerability teams can check your internet-facing estate for CVE-2024-28987 and every other exploited flaw on the list.

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Evidence

Sources

  1. CISA Known Exploited Vulnerabilities catalogue
  2. NVD: CVE-2024-28987
  3. CVE record: CVE-2024-28987
  4. FIRST EPSS
  5. solarwinds.com/trust-center/security-advisories/cve-2024-28987
  6. support.solarwinds.com/SuccessCenter/s/article/SolarWinds-Web-Help-Desk-12-8-3-Hotfix-2