CVE-2024-28986

SolarWinds Web Help Desk: Deserialization of Untrusted Data

As of , CVE-2024-28986 in SolarWinds Web Help Desk is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.

Exploited
Yes: CISA listed it on 15 August 2024
US federal deadline
5 September 202421 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.85Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
EPSS when listed
0.00 on 15 August 2024EPSS on the day CISA listed it.
Public exploit
None foundNeither Metasploit nor Exploit-DB lists one.
Fix
Vendor advice: www.solarwinds.comLinks below, from CISA's entry.

What CISA says to do

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

CISA's required action

What the flaw is

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

CISA's description

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.

The CVE record's description, from SolarWinds

CVE published
13 August 2024
Assigned by
SolarWinds
CVSS
9.8 Critical (CVSS 3.1, from the CNA)
CWE-502
Deserialization of Untrusted Data
CISA SSVC, exploitation
active
CISA SSVC, automatable
yes
CISA SSVC, technical impact
total

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.

Web Help Desk: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2025-26399Deserialization of Untrusted DataSolarWinds Web Help DeskPatch nowRansomware use, listed within a year0.90
CVE-2025-40536Security Control BypassSolarWinds Web Help DeskPatch this weekMetasploit module; EPSS 0.740.74
CVE-2025-40551Deserialization of Untrusted DataSolarWinds Web Help DeskPatch this weekMetasploit module; EPSS 0.840.84
CVE-2024-28987Hardcoded CredentialSolarWinds Web Help DeskPatch this weekMetasploit module; EPSS 0.930.93

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