SolarWinds Web Help Desk up to 12.8.8 HF1 deserialization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in SolarWinds Web Help Desk up to 12.8.8 HF1. The affected element is an unknown function. Such manipulation leads to deserialization. This vulnerability is traded as CVE-2025-40553. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in SolarWinds Web Help Desk up to 12.8.8 HF1 and classified as critical. Affected by this issue is some unknown functionality. The manipulation with an unknown input leads to a deserialization vulnerability. Using CWE to declare the problem leads to CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Impacted is confidentiality, integrity, and availability. CVE summarizes:

SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication.

The advisory is shared for download at solarwinds.com. This vulnerability is handled as CVE-2025-40553 since 04/16/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/05/2026).

The vulnerability scanner Nessus provides a plugin with the ID 297225 (SolarWinds Web Help Desk < 2026.1 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (297225) and CERT Bund (WID-SEC-2026-0247). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • SolarWinds Web Help Desk

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (SolarWinds): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 297225
Nessus Name: SolarWinds Web Help Desk < 2026.1 Multiple Vulnerabilities

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/16/2025 CVE reserved
01/28/2026 +287 days Advisory disclosed
01/28/2026 +0 days VulDB entry created
02/05/2026 +8 days VulDB entry last update

Sourcesinfo

Vendor: solarwinds.com

Advisory: solarwinds.com
Status: Confirmed

CVE: CVE-2025-40553 (🔒)
GCVE (CVE): GCVE-0-2025-40553
GCVE (VulDB): GCVE-100-343184
CERT Bund: WID-SEC-2026-0247 - SolarWinds Web Help Desk: Mehrere Schwachstellen

Entryinfo

Created: 01/28/2026 09:12
Updated: 02/05/2026 09:46
Changes: 01/28/2026 09:12 (60), 01/29/2026 16:51 (7), 01/31/2026 01:26 (2), 02/05/2026 09:46 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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