CVE-2021-31475Network attack vector

Administrator code execution via permissive WCF configuration

Published May 21, 2021 · Updated Aug 3, 2024

Improper authorization in SolarWinds Orion Job Scheduler 2020.2.1 HF 2 allows remote authenticated users to execute code as an administrator. The JobRouterService WCF configuration grants unprivileged accounts access to a critical service resource that performs administrator-context execution. Exploitation requires credentials for an unprivileged local account on the Orion Server and results in full administrator-level code execution.

CVSS severity8.8
High
EPSS probability6.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in SolarWinds Orion Job Scheduler 2020.2.1 HF 2 allows remote authenticated users to execute code as an administrator. The JobRouterService WCF configuration grants unprivileged accounts access to a critical service resource that performs administrator-context execution. Exploitation requires credentials for an unprivileged local account on the Orion Server and results in full administrator-level code execution.

The record

CVE
CVE-2021-31475
Published
May 21, 2021
Updated
Aug 3, 2024
Vendor
SolarWinds
Product
SolarWinds Orion Job Scheduler
Classifications
CWE-732, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 21, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2020.2.1 HF 2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

SolarWinds · SolarWinds Orion Job Schedulerversion=2020.2.1 HF 2

Published CVSS scores

9.0NVDAV:N/AC:L/Au:S/C:C/I:C/A:C
8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8SolarWindsCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8Zero Day InitiativeCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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