SolarWinds Web Help Desk Hardcoded Credential Vulnerability

The SolarWinds Web Help Desk (WHD) software is affected by a hardcoded credential vulnerability, allowing remote unauthenticated user to access internal functionality and modify data.

CheckOps priority index

8.8/10 Patch within 24 h

Severity9.1

Probability9.3

Exploitation4/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 93.3% higher than 99.8% of CVEs

CVSS 3.1 9.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:

Exploited for 749 days 15 Oct 2024

CISA due date 05 Nov 2024 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 4 / 5

KEV catalog (CISA)15 Oct 2024
Exploited in EUVD (ENISA)15 Oct 2024
Used by ransomwareno
EPSS above 10 %93.3%
No account, over the networkyes

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Affected products

Web Help Desk

Affected versions

12.8.3 Hotfix 1 and previous versions

Weaknesses (CWE)

CWE-798

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

21 Aug 2024
Published
15 Oct 2024
Exploitation reported (ENISA)
15 Oct 2024
Added to the KEV catalog
05 Nov 2024
CISA remediation due date
26 Sept 2026
EPSS peak: 93.3%

References

Other exploited vulnerabilities from the same vendor

CVE-2026-28318SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability
6.7 · Actively exploited
CVE-2025-26399SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability
9.6 · Background exploitation
CVE-2025-40536SolarWinds Web Help Desk Security Control Bypass Vulnerability
7.8 · Background exploitation
CVE-2025-40551SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability
8.8 · Background exploitation
CVE-2024-28986SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability
8.9 · Background exploitation
CVE-2024-28995SolarWinds Serv-U Path Traversal Vulnerability
8.8 · Background exploitation