CVE-2025-40536 (GCVE-0-2025-40536)

Vulnerability from cvelistv5 – Published: 2026-01-28 07:30 – Updated: 2026-02-26 15:04
VLAI CISA Previdian
Title
SolarWinds Web Help Desk Security Control Bypass Vulnerability
Summary
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.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-13 04:56 UTC
CWE
  • CWE-693 - Protection Mechanism Failure
Assigner
SolarWinds CNA under the mitre root
CNA scorecard B 83/100 over 30 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
SolarWinds Web Help Desk Affected: 12.8.8 HF1 and below
guessed Create a notification for this product.
Date Public
2026-01-28 07:25
Credits
Jimi Sebree working with Horizon3.ai
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 68077e92-2c8b-4c98-8710-d42de3281ef7

Vulnerability ID: CVE-2025-40536

Status: Confirmed

Status Updated: 2026-02-12 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-02-12
Asserted: 2026-02-12
Scope
Notes: SolarWinds Web Help Desk Security Control Bypass Vulnerability | Affected: SolarWinds / Web Help Desk | Description: SolarWinds Web Help Desk contains a security control bypass vulnerability that 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. | Due date: 2026-02-15 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm ; https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40536 ; https://nvd.nist.gov/vuln/detail/CVE-2025-40536
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-693
Feed CISA Known Exploited Vulnerabilities Catalog
Product Web Help Desk
Due Date 2026-02-15
Date Added 2026-02-12
Vendorproject SolarWinds
Vulnerabilityname SolarWinds Web Help Desk Security Control Bypass Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-13 07:17 UTC | Updated: 2026-11-04 13:37 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: c47a160b-db8b-45dd-8841-1b7ad032b605

Vulnerability ID: CVE-2025-40536

Status: Confirmed

Status Updated: 2026-06-01 10:50 UTC

Exploited: Yes

Timestamps
First Seen: 2026-06-01
Asserted: 2026-06-01
Scope
Notes: KEVIntel entry: SolarWinds Web Help Desk Security Control Bypass Vulnerability | Affected: SolarWinds / Web Help Desk | CVSS: 8.1 (HIGH) | EPSS: 0.81624 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title SolarWinds Web Help Desk Security Control Bypass Vulnerability
Vendor SolarWinds
Product Web Help Desk
Added Date 2026-06-01T10:50:56.244Z
Cvss Score 8.1
Epss Score 0.81624
Cvss Severity HIGH
Epss Percentile 0.99597
Used In Malware unknown
Ahead Of Cisa Kev 
{
  "count": 1,
  "unit": "day"
}
Not Yet In Cisa Kev False
References
Created: 2026-06-23 14:03 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website
To clipboard 

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Solutions

CNA · SolarWinds
SolarWinds recommends customers upgrade to Web Help Desk version 2026.1.

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Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.