PT-2026-5075 · Solarwinds · Solarwinds Web Help Desk

Published 2026-01-28 · Updated 2026-03-02 · CVE-2025-40553

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions SolarWinds Web Help Desk (affected versions not specified)

Description SolarWinds Web Help Desk is susceptible to an untrusted data deserialization issue. Successful exploitation could allow a remote attacker to execute arbitrary code on the system. The issue can be exploited without authentication. The vulnerability involves flaws in the data deserialization mechanism.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

BDU:2026-00931

CVE-2025-40553

Affected Products

Solarwinds Web Help Desk

References · 29

• 🔥 https://github.com/watchtowrlabs/watchTowr-vs-SolarWinds-WebHelpDesk-CVE-2025-40552-CVE-2025-40553/blob/main/watchTowr-vs-SolarWinds-WebHelpDesk-CVE-2025-40552-CVE-2025-40553.py · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-40553 · Security Note
• https://bdu.fstec.ru/vul/2026-00931 · Security Note
• https://solarwinds.com/trust-center/security-advisories/CVE-2025-40553 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-40553 · Vendor Advisory
• https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm · Note
• https://twitter.com/CVEnew/status/2016419906766479402 · Twitter Post
• https://twitter.com/securityRSS/status/2016807044771185119 · Twitter Post
• https://reddit.com/r/pwnhub/comments/1qqie5t/solarwinds_addresses_four_critical · Reddit Post
• https://twitter.com/CCBalert/status/2016510558443380741 · Twitter Post
• https://t.me/CSIRT_italia/3216 · Telegram Post
• https://twitter.com/NCIIPC/status/2016814338238185805 · Twitter Post
• https://twitter.com/ThreatSynop/status/2017046435058065621 · Twitter Post
• https://reddit.com/r/CVEWatch/comments/1ripw1i/top_10_trending_cves_02032026 · Reddit Post
• https://twitter.com/transilienceai/status/2023963610138001727 · Twitter Post