All vulnerabilities

Servers and applications

CVE-2017-9822

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."

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 3 Nov 2021.

Severity
High 8.8
Published
20 Jul 2017
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
9.1.1
Exploit chance
95% in the next 30 daysHigher than 99% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Code injection (CWE-94)
Attack
Over the network · Needs a user account · No user action needed
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
DNN PlatformServers and applications · cpe:a:dnnsoftware:dotnetnuke
  • Every version before 9.1.1

Known exploited

CISA name
DotNetNuke (DNN) Remote Code Execution Vulnerability
Required action
Apply updates per vendor instructions.
Due for US agencies
3 May 2022
Used in ransomware
Yes, known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-9822
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-9822