What is the CVSS score of CVE-2024-28987?

CVE-2024-28987 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 93.3%.

Is there a public PoC exploit available for CVE-2024-28987?

Yes, a public proof-of-concept exploit is available for CVE-2024-28987. Prioritise patching immediately. EPSS: 93.3%.

Web Help Desk CVE-2024-28987

CRITICAL

Use of Hard-coded Credentials (CWE-798)

2024-08-21 psirt@solarwinds.com

Authentication Bypass Web Help Desk Solarwinds

9.1

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-798 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V6 - Authentication Credential externalization MITRE ATT&CK 2 techniques across 2 tactics: Persistence, Credential Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 9.1 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived	A remote attacker could gain access using credentials embedded in source code by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL + in CISA KEV (actively exploited), no patch available.

Exploited in the wild (CISA KEV) No patch listed yet 93.3% exploitation probability (EPSS)

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AnalysisAI

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. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Remove hard-coded credentials, use environment variables or secrets management, rotate exposed credentials immediately.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Use of Hard-coded Credentials (CWE-798), which allows attackers to gain access using credentials embedded in source code. 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. Affected products include: Solarwinds Web Help Desk.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.1 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Added to CISA KEV

Jul 14, 2026 - 04:22 CISA

CVE Published

Aug 21, 2024 - 22:15 nvd

CRITICAL 9.1

DescriptionNVD

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.

Threat Intelligence Overview

EPSS Score

93.3%

Top 0% exploitable

Exploit

POC

Public exploit code exists

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

CISA KEV

EPSS POC (2)

GitHub Metasploit

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV Yes

Public POC Yes

EPSS 93.3%

Patch available No

Active threat Yes

Deciding rule

CRITICAL + in CISA KEV (actively exploited), no patch available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Immediate

Exploitation· derived

Active

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

High

Priority Score

209

Low Medium High Critical

KEV: +50

EPSS: +93

CVSS: +46

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)NVD

cpe:2.3:a:solarwinds:web_help_desk:*:*:*:*:*:*:*:*

cpe:2.3:a:solarwinds:web_help_desk:12.8.3:-:*:*:*:*:*:*

cpe:2.3:a:solarwinds:web_help_desk:12.8.3:hotfix1:*:*:*:*:*:*

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CVE-2025-40551 CRITICAL Emergency POC

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SolarWinds Web Help Desk contains an unauthenticated Java deserialization vulnerability (CVE-2025-40551, CVSS 9.8) that

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SolarWinds Web Help Desk contains a security control bypass vulnerability (CVE-2025-40536) that allows unauthenticated a

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SolarWinds Web Help Desk contains an unauthenticated deserialization RCE via AjaxProxy, a patch bypass of both CVE-2024-

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SolarWinds Web Help Desk has a second authentication bypass (EPSS 7.8%) providing yet another path to unauthenticated ad

CVE-2024-28986 CRITICAL Act Now POC

9.8 Aug 13

SolarWinds Web Help Desk was found to be susceptible to a Java Deserialization Remote Code Execution vulnerability that,

CVE-2025-40553 CRITICAL Act Now POC

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SolarWinds Web Help Desk has a second deserialization vulnerability (EPSS 11.9%) providing another unauthenticated RCE p

CVE-2024-28988 CRITICAL Act Now

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SolarWinds Web Help Desk was found to be susceptible to a Java Deserialization Remote Code Execution vulnerability that,

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Authentication bypass in SolarWinds Web Help Desk (WHD) allows remote unauthenticated attackers to circumvent SAML 2.0 s

CVE-2026-28299 HIGH This Week

7.5 Jun 02

Denial-of-service in SolarWinds Web Help Desk (2026.1 and all prior versions) lets remote unauthenticated attackers exha

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CVE-2021-35243 HIGH This Week

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The HTTP PUT and DELETE methods were enabled in the Web Help Desk web server (12.7.7 and earlier), allowing users to exe

Same weakness CWE-798 – Use of Hard-coded Credentials

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CVE-2016-1560 CRITICAL POC

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CVE-2017-14143 CRITICAL POC

9.8

CVE-2025-14611 HIGH POC

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10.0

CVE-2016-5678 CRITICAL POC

9.8

CVE-2017-6558 CRITICAL POC

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CVE-2015-7246 CRITICAL POC

9.8

CVE-2015-4667 CRITICAL POC

9.8

Same technique Authentication Bypass

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CVE-2015-3306 CRITICAL POC

10.0

CVE-2023-22515 CRITICAL POC

9.8

CVE-2012-4681 CRITICAL POC

9.8

CVE-2013-2465 CRITICAL POC

9.8

CVE-2011-3544 CRITICAL POC

9.8

CVE-2022-40684 CRITICAL POC

9.8

CVE-2025-61882 CRITICAL POC

9.8

CVE-2024-0012 CRITICAL POC

9.3

References

Advisories & patches

ADVISORY https://www.solarwinds.com/trust-center/security-advisories/cve-2024-28987 REF https://support.solarwinds.com/SuccessCenter/s/article/SolarWinds-Web-Help-Desk-12-8-3-Hotfix-2 REF https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-28987 REF https://www.theregister.com/2024/08/22/hardcoded_credentials_bug_solarwinds_whd/

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