CVE-2026-28299: SolarWinds Web Help Desk denial of service via memory exhaustion

CVE-2026-28299 · Severity: high · CVSS 8.2 · Published 2026-06-02

SolarWinds Web Help Desk, a software platform used by IT teams to manage service requests and support tickets, is vulnerable to a denial-of-service attack. An attacker can exploit this flaw to exhaust the server's memory, causing the application to crash and become unavailable to users. This disruption can prevent IT staff from accessing support tickets and delay critical service delivery.

Technologies: SolarWinds Web Help Desk. Vendors: SolarWinds.

Quick answers

Is CVE-2026-28299 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-28299 being exploited in the wild.
How severe is CVE-2026-28299?
High severity, with a CVSS score of 8.2, published 2 June 2026.
Which products and versions are affected?
SolarWinds Web Help Desk Versions prior to 2026.2.
Is there a fix for CVE-2026-28299?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-28299 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-28299?
Check whether you run SolarWinds Web Help Desk at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

SolarWinds Web Help Desk is vulnerable to a denial-of-service (DoS) attack classified under CWE-770 (Allocation of Resources Without Limits or Throttling). The vulnerability allows a remote, unauthenticated attacker to trigger excessive memory consumption on the Web Help Desk server. If successfully exploited, the server will crash due to insufficient memory, leading to a complete loss of availability for the service. The issue is addressed in version 2026.2 of the software.

Affected products

  • SolarWinds Web Help Desk Versions prior to 2026.2

Timeline

  • 2026-06-02: disclosed
  • 2026-06-02: advisory

References

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