SolarWinds Web Help Desk Exploited for RCE in Multi-Stage Attacks on Exposed Servers

Microsoft has revealed that it observed a multi‑stage intrusion that involved the threat actors exploiting internet‑exposed SolarWinds Web Help Desk WHD instances to obtain initial access and move laterally across the organization's network to other high-value assets. That said, the Microsoft...

Analysis of active exploitation of SolarWinds Web Help Desk

The Microsoft Defender Research Team observed a multi‑stage intrusion where threat actors exploited internet‑exposed SolarWinds Web Help Desk WHD instances to get an initial foothold and then laterally moved towards other high-value assets within the organization. However, we have not yet confirm...

Analysis of active exploitation of SolarWinds Web Help Desk

The Microsoft Defender Research Team observed a multi‑stage intrusion where threat actors exploited internet‑exposed SolarWinds Web Help Desk WHD instances to get an initial foothold and then laterally moved towards other high-value assets within the organization. However, we have not yet confirm...

SolarWinds Web Help Desk < 12.8.3 - Insecure Deserialization

SolarWinds Web Help Desk before version 12.8.3 contain a critical Java deserialization vulnerability that enables remote code execution. Attackers can exploit this flaw to execute arbitrary commands on the host machine. Initially reported as unauthenticated, SolarWinds was unable to reproduce...

CISA Adds Actively Exploited SolarWinds Web Help Desk RCE to KEV Catalog

The U.S. Cybersecurity and Infrastructure Security Agency CISA on Tuesday added a critical security flaw impacting SolarWinds Web Help Desk WHD to its Known Exploited Vulnerabilities KEV catalog, flagging it as actively exploited in attacks. The vulnerability, tracked as CVE-2025-40551 CVSS score...

CISA Adds Four Known Exploited Vulnerabilities to Catalog

CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities KEV Catalog, based on evidence of active exploitation. CVE-2019-19006link is external Sangoma FreePBX Improper Authentication Vulnerability CVE-2021-39935link is external GitLab Community and Enterprise Editions...

VulnCheck KEV: CVE-2025-40551

SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication...

Vulnerabilities fixed in SolarWinds Web Help Desk

SolarWinds has fixed vulnerabilities in SolarWinds Web Help Desk. The vulnerabilities include the ability for unauthenticated attackers to gain access to limited functionality within the system, the use of hard-coded credentials that could grant unauthorized access to administrative functions, an...

SolarWinds Web Help Desk < 2026.1 Multiple Vulnerabilities

The version of Solarwinds Web Help Desk installed on the remote host is prior to 2026.1. It is, therefore, affected by multiple vulnerabilities. - SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, whic...

Exploit for CVE-2025-40554

CVE-2025-40554 – SolarWinds Web Help Desk Auth Bypass PoC Pro...

CVE-2025-40554

SolarWinds Web Help Desk was found to be susceptible to an authentication bypass vulnerability that, if exploited, could allow an attacker to invoke specific actions within Web Help Desk...

CVE-2025-40552

SolarWinds Web Help Desk was found to be susceptible to an authentication bypass vulnerability that if exploited, would allow a malicious actor to execute actions and methods that should be protected by authentication...

CVE-2025-40536

SolarWinds Web Help Desk was found to be susceptible to a security control bypass vulnerability that if exploited, could allow an unauthenticated attacker to gain access to certain restricted functionality...

CVE-2025-40553

SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication...

CVE-2025-40551

SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication...

SolarWinds Fixes Four Critical Web Help Desk Flaws With Unauthenticated RCE and Auth Bypass

SolarWinds has released security updates to address multiple security vulnerabilities impacting SolarWinds Web Help Desk, including four critical vulnerabilities that could result in authentication bypass and remote code execution RCE. The list of vulnerabilities is as follows - CVE-2025-40536 CV...

Multiple Critical SolarWinds Web Help Desk Vulnerabilities: CVE-2025-40551, CVE-2025-40552, CVE-2025-40553, CVE-2025-40554

Overview On January 28, 2026, SolarWinds published an advisory for multiple new vulnerabilities affecting their Web Help Desk product. Web Help Desk is an IT help desk ticketing and asset management software solution. Of the six new CVEs disclosed in the advisory, four are critical, and allow a...

CVE-2025-40553

SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication...

CVE-2025-40551

SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication...

CVE-2025-40552

SolarWinds Web Help Desk was found to be susceptible to an authentication bypass vulnerability that if exploited, would allow a malicious actor to execute actions and methods that should be protected by authentication...