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SolarWinds · Web Help Desk

CVE-2024-28986

SolarWinds Web Help Desk Java Deserialization Remote Code Execution Vulnerability

Exploited in attacks Critical 9.8 Attack chance: 85%
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What it is

SolarWinds Web Help Desk was found to be susceptible to a Java Deserialization Remote Code Execution vulnerability that, if exploited, would allow an attacker to run commands on the host machine.

While it was reported as an unauthenticated vulnerability, SolarWinds has been unable to reproduce it without authentication after thorough testing.  

However, out of an abundance of caution, we recommend all Web Help Desk customers apply the patch, which is now available.

CISA: SolarWinds Web Help Desk contains a deserialization of untrusted data vulnerability that could allow for remote code execution.

What to do

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

Deadline for US federal agencies: September 5, 2024

Added to the CISA list
August 15, 2024
Published
August 13, 2024
Severity
Critical 9.8 CVSS 3.1
Chance of attacks in the next 30 days (EPSS)
85% in the top 0.3% of all known vulnerabilities
Weakness
CWE-502
More details
NVD · CVE.org · CISA
All references (2)

More exploited flaws from SolarWinds

AddedVulnerabilityProductSeverityAttack chance
Mar 9, 2026Deserialization of Untrusted DataCVE-2025-26399used by ransomwareWeb Help DeskCritical 9.890%
Feb 12, 2026Security Control BypassCVE-2025-40536Web Help DeskHigh 8.174%
Feb 3, 2026Deserialization of Untrusted DataCVE-2025-40551Web Help DeskCritical 9.884%
Oct 15, 2024Hardcoded CredentialCVE-2024-28987Web Help DeskCritical 9.193%
Jun 5, 2026Uncontrolled Resource ConsumptionCVE-2026-28318Serv-UHigh 7.544%
Jul 17, 2024Path Traversal Vulnerability CVE-2024-28995Serv-UHigh 8.699.6%
Jan 21, 2022Improper Input ValidationCVE-2021-35247Serv-UMedium 4.33.5%
Nov 3, 2021Privilege EscalationCVE-2016-3643Virtualization ManagerHigh 7.83.7%

All of them →

Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.