CVE-2024-28987: SolarWinds Web Help Desk Hardcoded Credential Vulnerability

Is it exploited?

Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 15 Oct 2024, 55 days after the CVE record was published.

How likely is exploitation in the next 30 days?

93.3%

EPSS score, percentile 99.8 of all scored records

How severe?

9.1 Critical

CVSS v3.1 base score, given by the CNA

What should I do?

Required action (CISA), due 5 Nov 2024: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected: 12.8.3 Hotfix 1 and previous versions

Versions by product

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

What to do

CISA due date for this action: 5 November 2024.

Solution (from the CVE record)

SolarWinds recommends that customers upgrade to SolarWinds Web Help Desk v12.8.3 HF2 as soon as it becomes available.

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

Linked from CISA's catalog entry

• https://www.solarwinds.com/trust-center/security-advisories/cve-2024-28987
• https://nvd.nist.gov/vuln/detail/CVE-2024-28987

Affected products and versions

As listed in the CVE record.

Versions not listed are: affected.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

About this vulnerability

SolarWinds Web Help Desk contains a hardcoded credential vulnerability that could allow a remote, unauthenticated user to access internal functionality and modify data.

Summary: CISA's KEV catalog, as of 28 Oct 2026.

• CISA added CVE-2024-28987 to its Known Exploited Vulnerabilities (KEV) catalog on 15 Oct 2024.
• CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
• The due date CISA sets for the required action is 5 Nov 2024.
• The CVE record was published on 21 Aug 2024, 55 days before it was added to KEV.
• The CVE record carries a CVSS v3.1 base score of 9.1 (Critical), given by its CNA.
• FIRST's EPSS model puts the probability of exploitation in the next 30 days at 93.3% (percentile 99.8), as of 28 Oct 2026.
• CISA's SSVC assessment in the CVE record: exploitation active, automatable yes, technical impact total.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.

Description

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.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

Weakness

• CWE-798: Use of Hard-coded Credentials

Attack patterns (CAPEC)

• CAPEC-21: Exploitation of Trusted Credentials

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.

Timeline

References

• solarwinds.com
• support.solarwinds.com

More exploited SolarWinds vulnerabilities

• CVE-2026-28318: SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability (added 5 Jun 2026)
• CVE-2025-26399: SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability (added 9 Mar 2026)
• CVE-2025-40536: SolarWinds Web Help Desk Security Control Bypass Vulnerability (added 12 Feb 2026)
• CVE-2025-40551: SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability (added 3 Feb 2026)
• CVE-2024-28986: SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability (added 15 Aug 2024)
• CVE-2024-28995: SolarWinds Serv-U Path Traversal Vulnerability (added 17 Jul 2024)