CVE-2026-28325

Description

SolarWinds Observability Self-Hosted was found to be affected by an unauthenticated remote code execution vulnerability stemming from deserialization of untrusted data when the application is configured to use a specific communication mode.

Overview

State: PUBLISHED
Assigner (CNA): SolarWinds
CVSS severity: HIGH
CVSS score: 8.8 / 10
CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Effective score: 8.8 / 10 HIGH source: CNA overview
CWE(s): CWE-502
Reserved: 2026-02-26
Published: 2026-09-22 19:12 UTC
Last updated: 2026-09-22 19:36 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/28xxx/CVE-2026-28325.json
Linked Threat: CVE-2026-28325 — SolarWinds Observability Self-Hosted Unauthenticated Remote Code Execution Vulnerability

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-09-22 20:17:03 UTC
NVD last modified: 2026-09-22 20:17:03 UTC
NVD CVSS v3.1: 8.8 / 10 HIGH source: psirt@solarwinds.com
NVD CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability subscore: 2.8 / 10
Impact subscore: 5.9 / 10

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-84678
Assigner: SolarWinds
Published: Sep 22, 2026, 7:12:44 PM
Updated: Sep 23, 2026, 3:56:15 AM
EUVD base score (CVSS 3.1): 8.8 / 10
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EUVD-reported EPSS: 0.0000
Vendors: SolarWinds
Products: Observability Self-Hosted (0 <2026.2.3)
Aliases: GHSA-r476-9mp7-phxc

ENISA description: SolarWinds Observability Self-Hosted was found to be affected by an unauthenticated remote code execution vulnerability stemming from deserialization of untrusted data when the application is configured to use a specific communication mode.

EUVD references (3)

Affected products (1)

Vendor	Product	Versions	Platforms
SolarWinds	Observability Self-Hosted	`0` (affected)	—

Vendor references (3)

References embedded in the original CVE record by the assigning CNA.

https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/hco_2026-2-3_release_notes.htm release-notes
https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28325 vendor-advisory
https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm x_secure-configuration-guide

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (3)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm psirt@solarwinds.com
https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/hco_2026-2-3_release_notes.htm psirt@solarwinds.com
https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28325 psirt@solarwinds.com

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

SolarWinds ARM Hard-Coded Key Allows Unauthenticated RCE

web:0daynews.com

CVE - 2026 -28326 (CVSS 8.8) in SolarWinds Access Rights Manager through 2026.2 lets unauthenticated attackers execute code. Patch ARM 2026.2.1 is available now.

2026-09-23 15:18 UTC
CVE-2026-28325 - Vulnerability Details - OpenCVE

web:app.opencve.io

SolarWinds Observability Self‑Hosted installations are impacted. The vulnerability applies to any deployed version that is older than the patched release 2026.2.3 and that has the vulnerable communication mode enabled. No specific version range is provided in the CVE , so all current releases without the patch are considered at risk.

2026-09-23 15:18 UTC
CVE-2026-28323 and CVE-2026-28299 | Arctic Wolf

web:arcticwolf.com

Learn about critical SolarWinds Web Help Desk vulnerabilities CVE - 2026 -28323 and CVE - 2026 -28299, including patch guidance, mitigation steps, and security recommendations.

2026-09-23 15:18 UTC
CVE-2026-28325 · SolarWinds · CVSS 8.8 · CVE Brief Analyst Report

web:cvebrief.com

Remediation Immediate Action: Upgrade to SolarWinds Observability Self-Hosted version 2026.2.3 immediately to apply the vendor-supplied security patch . Proactive Monitoring: Review system and application logs for anomalous deserialization patterns or unexpected process execution originating from the Observability platform.

2026-09-23 15:18 UTC
CVE-2026-28325: SolarWinds Insecure Deserialization | CVETodo

web:cvetodo.com

CVE-2026-28325 is an Insecure Deserialization vulnerability in Observability Self Hosted. Includes technical details, affected versions, and mitigation steps.

2026-09-23 15:18 UTC
SolarWinds Observability Flaws Let Unauthenticated Attackers Execute ...

web:cyberpress.org

SolarWinds released Observability Self-Hosted 2026.2.3 to address two critical remote code execution vulnerabilities that could let unauthenticated attackers compromise affected deployments. The flaws, tracked as CVE - 2026 -28324 and CVE-2026-28325 , carry CVSS severity scores of 9.8 and 8.8, respectively, and security researcher Kai Huang of Armadin reported them. SolarWinds said both ...

2026-09-23 15:18 UTC
Description of the security update for Office 2016: August 11, 2026 ...

web:support.microsoft.com

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home. (See What version of Office am I using?) How to get and install the update Method 1: Microsoft Update This update is available from Microsoft Update. When you turn on ...

2026-09-23 15:18 UTC
CVE-2026-28324, CVE-2026-28325: SolarWinds Patches Critical

web:techjacksolutions.com

Executive Summary SolarWinds released Observability Self-Hosted version 2026.2.3 on September 22, 2026 , to address two unauthenticated remote code execution vulnerabilities tracked as CVE - 2026 -28324 and CVE-2026-28325 , according to the vendor advisory as reported by Cybersecurity News.

2026-09-23 15:18 UTC
Critical Patches Issued for Microsoft Products, August 11, 2026

web:www.cisecurity.org

<p>Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for remote code execution. Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged-on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or ...

2026-09-23 15:18 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-23 15:18 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-28325.json.

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