High 8.8Known exploited (CISA KEV)Published Jul 20, 2017

CVE-2017-9822DNN (aka DotNetNuke) before 9.1.1 has Remote Code Execution via a cookie, aka "2017-08 (Critical) Possible remote code execution on DNN sites."

Updated under an hour ago (2026-10-19 06:10 UTC)

Does this affect you?

It affects DotNetNuke CMS Fixed in 9.1.1 and 1 other product. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Nov 3, 2021; federal agencies had to remediate by May 3, 2022, and it is known to be used in ransomware. Treat that date as your deadline.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for DotNetNuke CMS Fixed in 9.1.1

Exploited in the last 30 days

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."

CVSS: 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-94
Known exploited: Added to CISA KEV Nov 3, 2021; federal remediation due May 3, 2022; known ransomware useApply updates per vendor instructions.
EPSS (exploitation in the next 30 days): 94.79% (percentile 100)
Assigned by: hpe
NVD analysis: Analyzed
Record last updated: Oct 21, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

DotNetNuke DotNetNuke CMS Fixed in 9.1.1 dotnetnuke:cms_fixed_in_9.1.1 (from the name)	DotNetNuke CMS Fixed in 9.1.1	CNA record
dnnsoftware dotnetnuke dnnsoftware:dotnetnuke	before 9.1.1	NVD

References

http://www.securityfocus.com/bid/102213vdb-entry, x-refsource-bid, broken-link, third-party-advisory
http://www.dnnsoftware.com/community/security/security-centerx-refsource-confirm, product, vendor-advisory
http://packetstormsecurity.com/files/157080/DotNetNuke-Cookie-Deserialization-Remote-Code-Execution.htmlx-refsource-misc, exploit, third-party-advisory, vdb-entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-9822us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.