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CVE-2017-9822

8.8, high Known exploited Used in ransomware

DotNetNuke (DNN) Remote Code Execution Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
8.8, high high CVSS v3.1
EPSS, next 30 days
95% higher than 99.8% of scored CVEs
Exploitation
Confirmed in the wild
Published
20 Jul 20179 years ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 3 Nov 2021 and links it to ransomware activity. US federal agencies had to remediate by 3 May 2022, a deadline that has passed.

Required action. Apply updates per vendor instructions.

Description

DNN (aka DotNetNuke) before 9.1.1 has Remote Code Execution via a cookie, aka "2017-08 (Critical) Possible remote code execution on DNN sites."

Details

Vendor
DotNetNuke (DNN)
Product
DotNetNuke CMS Fixed in 9.1.1
Weakness
CWE-94 (opens in a new tab)
Status
Analyzed
Updated
17 Jun 2026
Assigner
security-alert@hpe.com

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References 4

Exploit code 1

Advisories 2

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other DotNetNuke (DNN) CVEs

Every DotNetNuke (DNN) CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2018-15811 DotNetNuke (DNN) Inadequate Encryption Strength Vulnerability KEV EPSS 76% 7.5, high
  • CVE-2018-18325 DotNetNuke (DNN) Inadequate Encryption Strength Vulnerability KEV EPSS 74% 7.5, high

Beyond this page

Is CVE-2017-9822 in your network?

This page tells you how dangerous CVE-2017-9822 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2017-9822 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2017-9822 comes with the devices to patch.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 16 Oct 2026, not the live upstream state.