CVE Watch11 oct 2026

CVE-2025-26399

SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability

CVSS

9.8

Crítico

EPSS

89.5%

p100

KEV

SÍ

9 mar 2026

Exploit Today

0-100

Publicado: 23 sept 2025 · Última mod.: 11 oct 2026 · CWE-502

EPSS · 30d

89.5%EPSS · 30 días89.5%

2026-09-172026-10-14

Ficha del catálogo KEV

Producto

SolarWinds / Web Help Desk

Vulnerabilidad

SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability

Añadido a KEV

9 mar 2026

Remediar antes de

12 mar 2026

Uso conocido en ransomware

Sí

Descripción resumida

SolarWinds Web Help Desk contain a deserialization of untrusted data vulnerability in AjaxProxy that could allow an attacker to run commands on the host machine.

Acción requerida

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notas

https://www.solarwinds.com/trust-center/security-advisories/cve-2025-26399 ; https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_12-8-7-hotfix-1_release_notes.htm ; https://nvd.nist.gov/vuln/detail/CVE-2025-26399

Descripción técnica

SolarWinds Web Help Desk was found to be susceptible to an unauthenticated AjaxProxy deserialization remote code execution vulnerability that, if exploited, would allow an attacker to run commands on the host machine. This vulnerability is a patch bypass of CVE-2024-28988, which in turn is a patch bypass of CVE-2024-28986.

Referencias oficiales

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