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    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.

    Published:Jan 28, 2026
    Last Modified:Feb 26, 2026
    EPS:Jan 28, 2026
    EPSS Score:0.66632
    CVSS Score:8.1

    CISA Notification

    Description

    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.

    Required Action:

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

    Notes:

    No extra notes provided.

    Due Date
    Feb 15, 2026
    208 days ago
    Alert Date
    Feb 12, 2026
    211 days ago

    Affected Products

    Vendor
    Solarwinds
    Product
    Web Help Desk

    Exploits

    https://github.com/victoriaalicex/CVE-2025-40536-Analysis

    Common Weakness Enumeration

    CWE-693 Protection Mechanism Failure

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs
    CAPEC-107 Cross Site Tracing
    CAPEC-127 Directory Indexing
    CAPEC-17 Using Malicious Files
    CAPEC-20 Encryption Brute Forcing
    CAPEC-22 Exploiting Trust in Client
    CAPEC-237 Escaping a Sandbox by Calling Code in Another Language
    CAPEC-36 Using Unpublished Interfaces or Functionality
    CAPEC-477 Signature Spoofing by Mixing Signed and Unsigned Content
    CAPEC-480 Escaping Virtualization
    CAPEC-51 Poison Web Service Registry
    CAPEC-57 Utilizing REST's Trust in the System Resource to Obtain Sensitive Data
    CAPEC-59 Session Credential Falsification through Prediction
    CAPEC-65 Sniff Application Code
    CAPEC-668 Key Negotiation of Bluetooth Attack (KNOB)
    CAPEC-74 Manipulating State
    CAPEC-87 Forceful Browsing

    Related CVEs

    CVE-2026-28323 (CVSS 9.8) — SolarWinds Web Help Desk is found to be affected by a SAML authentication bypass vulnerability. This requires …
    CVE-2026-28299 (CVSS 8.2) — SolarWinds Web Help Desk is found to be affected by a denial-of-service vulnerability, which when exploited, c…
    CVE-2025-40554 (CVSS 9.8) — SolarWinds Web Help Desk was found to be susceptible to an authentication bypass vulnerability that, if exploi…
    CVE-2025-40553 (CVSS 9.8) — SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that c…
    CVE-2025-40552 (CVSS 9.8) — SolarWinds Web Help Desk was found to be susceptible to an authentication bypass vulnerability that if exploit…
    CVE-2025-40551 (CVSS 9.8) — SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that c…
    CVE-2025-40537 (CVSS 7.5) — SolarWinds Web Help Desk was found to be susceptible to a hardcoded credentials vulnerability that, under cert…
    CVE-2025-26399 (CVSS 9.8) — SolarWinds Web Help Desk was found to be susceptible to an unauthenticated AjaxProxy deserialization remote co…
    CVE-2024-28988 (CVSS 9.8) — SolarWinds Web Help Desk was found to be susceptible to a Java Deserialization Remote Code Execution vulnerabi…
    CVE-2025-26400 (CVSS 5.3) — SolarWinds Web Help Desk was reported to be affected by an XML External Entity Injection (XXE) vulnerability t…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High