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CVE-2025-40554

78
FAUCET Score

CVE-2025-40554 is a critical authentication bypass vulnerability affecting SolarWinds Web Help Desk. An unauthenticated attacker can exploit this flaw remotely with low complexity to invoke arbitrary actions, leading to complete compromise of confidentiality, integrity, and availability. While not yet in CISA's KEV catalog, the vulnerability has high community discussion, multiple media reports indicating active exploitation, and publicly available Nuclei templates for detection.

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

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
57.31%
Probability of exploitation in next 30 days
EPSS Percentile
99.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Nuclei: CVE-2025-40554 · Feb 16, 2026
This CVE's current EPSS score of 0.5731 is in the 97th percentile among its peer group of 36,833 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-052be83ce07052d9CRITICAL

SolarWinds Web Help Desk Authentication Bypass Vulnerability

Jan 28, 2026

References

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-2025-40554
Vendor Advisory