CVE-2017-9822

HIGHNVD 8.89.0▲Trending — 4 sources updated this weekExploited in the wild

8.8

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 v3: 8.8
EG Score: 9.0(high)
EPSS: 99.9%
KEV: ⚠ Exploited

Published

July 20, 2017

Last Modified

April 21, 2026

Advisory Details (3)

Auto-updated May 2, 2026

⚠️ Active exploitation confirmed. Patch available. Sources: cisa.

cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-9822

generic

http://www.securityfocus.com/bid/102213

generic

Packet Storm

http://packetstormsecurity.com/files/157080/DotNetNuke-Cookie-Deserialization-Remote-Code-Execution.html

Affected Packages

(1 across 1 ecosystem)

NuGet(1)

Package	Vulnerable range	Fixed in	Dependents
DotNetNuke.Core	6.0.0 ... 9.1.0.367 (19 versions)	9.1.1	—

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-03 14:56 UTCEG score recompute
2026-06-03 11:03 UTCEG score recompute
2026-06-03 07:10 UTCEG score recompute
2026-06-03 03:17 UTCEG score recompute
2026-06-02 23:24 UTCEG score recompute
2026-06-02 19:31 UTCEG score recompute
2026-06-02 18:32 UTCkev_newly_listed
2026-06-02 15:38 UTCEG score recompute
2026-06-02 11:45 UTCEG score recompute
2026-06-02 07:52 UTCEG score recompute
2026-06-02 03:59 UTCEG score recompute
2026-06-02 00:06 UTCEG score recompute
2026-06-01 20:42 UTCkev_newly_listed
2026-06-01 20:13 UTCEG score recompute
2026-06-01 16:20 UTCEG score recompute
2026-06-01 12:27 UTCEG score recompute
2026-06-01 08:33 UTCEG score recompute
2026-06-01 04:39 UTCEG score recompute
2026-06-01 00:22 UTCEG score recompute
2026-05-31 22:28 UTCepss_batch

Publicly available exploits

(4 references)

Working exploit code is in the public domain (1 Metasploit module) (1 GitHub PoC) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

GitHub PoCmurataydemir/CVE-2017-9822
First seen Aug 28, 2020
[CVE-2017-9822] DotNetNuke Cookie Deserialization Remote Code Execution (RCE)
Open source ↗
Exploit-DBEDB-48336✓ verified
First seen Apr 16, 2020
DotNetNuke - Cookie Deserialization Remote Code Execution (Metasploit)
Open source ↗
Metasploitexploit/windows/http/dnn_cookie_deserialization_rce✓ verified
First seen Jul 20, 2017
DotNetNuke Cookie Deserialization Remote Code Excecution
Open source ↗
Nucleihttp/cves/2017/CVE-2017-9822.yaml
First seen Jan 1, 2017
DotNetNuke 5.0.0 - 9.3.0 - Cookie Deserialization Remote Code Execution
Open source ↗

Frequently asked(6)

What is CVE-2017-9822?

CVE-2017-9822 is a high vulnerability published on July 20, 2017. 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."

When was CVE-2017-9822 disclosed?

CVE-2017-9822 was first published in the National Vulnerability Database on July 20, 2017, with the most recent update on April 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2017-9822 actively exploited?

Yes. CISA added CVE-2017-9822 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting DotNetNuke (DNN) DotNetNuke (DNN). KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.

What is the CVSS score of CVE-2017-9822?

CVE-2017-9822 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.

Which products are affected by CVE-2017-9822?

CVE-2017-9822 affects DotNetNuke (DNN) DotNetNuke (DNN). The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.

How do I remediate CVE-2017-9822?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-9822, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2017-9822

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