CVE-2017-9822

HIGHNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Trending — 3 sources updated this weekExploited in the wild
8.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 95%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
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)
PackageVulnerable rangeFixed inDependents
DotNetNuke.Core6.0.0 ... 9.1.0.367 (19 versions)9.1.1—

Data Freshness Timeline

(refreshed 8× in last 7d / 22× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 01:31 UTCEG score recompute
  2. 2026-07-22 22:11 UTCEG score recompute
  3. 2026-07-22 19:40 UTCCISA KEV update
  4. 2026-07-21 14:37 UTCCISA KEV update
  5. 2026-07-18 12:14 UTCEG score recompute
  6. 2026-07-18 10:01 UTCEPSS rescore
  7. 2026-07-17 09:01 UTCEG score recompute
  8. 2026-07-16 17:04 UTCCISA KEV update
  9. 2026-07-15 16:49 UTCCISA KEV update
  10. 2026-07-15 15:04 UTCCISA KEV update
  11. 2026-07-14 18:05 UTCCISA KEV update
  12. 2026-07-13 17:07 UTCCISA KEV update
  13. 2026-07-10 17:52 UTCCISA KEV update
  14. 2026-07-07 19:01 UTCCISA KEV update
  15. 2026-07-07 17:16 UTCCISA KEV update
  16. 2026-07-01 19:16 UTCCISA KEV update
  17. 2026-06-29 19:12 UTCCISA KEV update
  18. 2026-06-25 19:15 UTCCISA KEV update
  19. 2026-06-25 13:47 UTCEPSS rescore
  20. 2026-06-23 21:30 UTCEPSS rescore
  21. 2026-06-23 21:30 UTCEPSS rescore
  22. 2026-06-23 17:44 UTCCISA KEV update
  23. 2026-06-18 16:13 UTCCISA KEV update
  24. 2026-06-16 19:33 UTCCISA KEV update
  25. 2026-06-15 19:33 UTCCISA KEV update
Show 31 more
  1. 2026-06-15 17:45 UTCEPSS rescore
  2. 2026-06-12 17:35 UTCCISA KEV update
  3. 2026-06-11 19:10 UTCCISA KEV update
  4. 2026-06-09 18:42 UTCCISA KEV update
  5. 2026-06-09 17:12 UTCCISA KEV update
  6. 2026-06-08 19:16 UTCCISA KEV update
  7. 2026-06-08 17:26 UTCCISA KEV update
  8. 2026-06-05 22:43 UTCCISA KEV update
  9. 2026-06-03 19:09 UTCCISA KEV update
  10. 2026-06-02 18:32 UTCCISA KEV update
  11. 2026-06-01 20:42 UTCCISA KEV update
  12. 2026-05-31 22:28 UTCEPSS rescore
  13. 2026-05-30 22:23 UTCOSV refresh
  14. 2026-05-29 22:20 UTCCISA KEV update
  15. 2026-05-27 20:35 UTCCISA KEV update
  16. 2026-05-26 19:13 UTCCISA KEV update
  17. 2026-05-22 19:13 UTCCISA KEV update
  18. 2026-05-21 22:36 UTCCISA KEV update
  19. 2026-05-20 17:33 UTCCISA KEV update
  20. 2026-05-20 11:21 UTCEPSS rescore
  21. 2026-05-20 11:21 UTCEPSS rescore
  22. 2026-05-20 11:21 UTCEPSS rescore
  23. 2026-05-20 11:21 UTCEPSS rescore
  24. 2026-05-20 11:21 UTCEPSS rescore
  25. 2026-05-20 11:21 UTCEPSS rescore
  26. 2026-05-18 21:58 UTCEG score recompute
  27. 2026-05-18 21:30 UTCEPSS rescore
  28. 2026-05-18 21:30 UTCEPSS rescore
  29. 2026-05-18 21:30 UTCEPSS rescore
  30. 2026-05-18 21:22 UTCCISA KEV update
  31. 2026-05-18 21:22 UTCCISA KEV update

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

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