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CVE-2017-9822

98
FAUCET Score

CVE-2017-9822 is a critical remote code execution (RCE) vulnerability affecting DNN (DotNetNuke) versions prior to 9.1.1, stemming from insecure deserialization via a cookie. With a CVSS score of 8.8 (HIGH), this vulnerability allows an unauthenticated attacker to execute arbitrary code on the affected server with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. The vulnerability is actively exploited in the wild, including in known ransomware campaigns, and has readily available exploit modules in Metasploit and Nuclei, along with significant community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.1.1CPE matchmatch criteria
cpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
94.79%
Probability of exploitation in next 30 days
EPSS Percentile
99.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Added to KEV · Nov 3, 2021
Metasploit: DotNetNuke Cookie Deserialization Remote Code Excecution · Jul 20, 2017
Nuclei: CVE-2017-9822 · Jun 30, 2021
ExploitDB: EDB-48336 · Apr 16, 2020
This CVE's current EPSS score of 0.9479 is in the 100th percentile among its peer group of 17,805 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

nugetpatch availablevia ghsa
Product: DotNetNuke.CoreFixed in: 9.1.1

Vendor Advisories (1)

nugetGHSA-x2rg-fmcv-crq5high

DNN (aka DotNetNuke) has Remote Code Execution via a cookie

Oct 16, 2018

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/157080/DotNetNuke-Cookie-Deserialization-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
dnnsoftware.com / community/security/security-center
ProductVendor Advisory
securityfocus.com / bid/102213
Broken LinkThird Party AdvisoryVDB Entry