25 Apr, 2026

Critical SolarWinds Serv-U flaws offer root access to servers

SolarWinds has released security updates to patch four critical Serv-U remote code execution vulnerabilities that could grant attackers root access to unpatched servers. Serv-U is the company’s self-hosted Windows and Linux file transfer software that comes with both Managed File Transfer (MFT) and FTP server capabilities, enabling organizations to securely exchange files via FTP, FTPS, […]

2 mins read

Hackers exploit SolarWinds WHD flaws to deploy DFIR tool in attacks

Hackers are exploiting SolarWinds Web Help Desk (WHD) vulnerabilities to deploy legitimate tools for malicious purposes, such as the Zoho ManageEngine remote monitoring and management tool. The attacker targeted at least three organizations and also leveraged Cloudflare tunnels for persistence, and the Velociraptor cyber incident response tool for command and control (C2). The malicious activity was spotted […]

3 mins read

CISA flags critical SolarWinds RCE flaw as exploited in attacks

CISA has flagged a critical SolarWinds Web Help Desk vulnerability as actively exploited in attacks and ordered federal agencies to patch their systems within three days. Tracked as CVE-2025-40551, this security flaw stems from an untrusted data deserialization weakness discovered and reported by Horizon3.ai security researcher Jimi Sebree, which can allow unauthenticated attackers to gain remote command […]

2 mins read

SolarWinds warns of critical Web Help Desk RCE, auth bypass flaws

SolarWinds has released security updates to patch critical authentication bypass and remote command execution vulnerabilities in its Web Help Desk IT help desk software. The authentication bypass security flaws (tracked as CVE-2025-40552 and CVE-2025-40554) patched today by SolarWinds were reported by watchTowr’s Piotr Bazydlo and can be exploited by remote unauthenticated threat actors in low-complexity attacks. Bazydlo also […]

2 mins read

SolarWinds releases third patch to fix Web Help Desk RCE bug

SolarWinds has released a hotfix for a critical a critical vulnerability in Web Help Desk that allows remote code execution (RCE) without authentication. Tracked as CVE-2025-26399, the security issue is the company’s third attempt to address an older flaw identified as CVE-2024-28986 that impacted Web Help Desk (WHD) 12.8.3 and all previous versions. SolarWinds WHD is a help […]

2 mins read

SolarWinds fixes critical RCE bug affecting all Web Help Desk versions

A critical vulnerability in SolarWinds’ Web Help Desk solution for customer support could be exploited to achieve remote code execution, the American business software developer warns in a security advisory today. The company has released a hotfix and says that the security issue, tracked as CVE-2024-28986, is a Java deserialization that would allow an attacker to run commands […]

1 min read