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CVE-2025-40536

97
FAUCET Score

CVE-2025-40536 is a critical security control bypass vulnerability affecting SolarWinds Web Help Desk. This flaw allows an unauthenticated attacker to gain access to restricted functionality. With a CVSS score of 9.8 (CRITICAL), it presents a high risk due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality, integrity, and availability. The vulnerability is actively exploited in the wild, with public exploit modules available in Metasploit and Nuclei templates, and has garnered significant community discussion and media attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 2026.1CPE matchmatch criteria
cpe:2.3:a:solarwinds:web_help_desk:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
71.55%
Probability of exploitation in next 30 days
EPSS Percentile
99.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Feb 12, 2026
Metasploit: SolarWinds Web Help Desk unauthenticated RCE · Jan 28, 2026
Nuclei: CVE-2025-40536 · Feb 16, 2026
This CVE's current EPSS score of 0.7155 is in the 98th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

applepatch availablevia llm_extracted
Fixed in: 2026.1

Vendor Advisories (1)

applellm-apple-45d0adf3ba5ea07fHIGH

SolarWinds Web Help Desk Security Control Bypass Vulnerability

Jan 28, 2026

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
huntress.com / blog/active-exploitation-solarwinds-web-help-desk-cve-2025-26399
Third Party Advisory
documentation.solarwinds.com / en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm
Release Notes
solarwinds.com / trust-center/security-advisories/CVE-2025-40536
Vendor Advisory