CVE-2017-9822
Exploitation confirmed. First attested on 2021-11-03 by CISA-ADP, CISA KEV, GCVE · kevintel.
- Published2017-07-20
- Fixed in9.1.1
- WeaknessCWE-94
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
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."
Timeline
dates in UTC- 2017-07-2012:29CVE publishedNVD
- 2021-11-03Listed as exploited by GCVEGCVE
- 2021-11-03Exploitation first reportedCISA KEV
- 2021-11-03Added to the CISA KEV catalogCISA KEV
- 2025-02-0713:41SSVC exploitation set to activeCISA-ADP
- 2026-10-2319:23First public proof of conceptPoC-in-GitHub
- 2026-10-2319:23EPSS crossed 10 %FIRST EPSS
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-9822?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-9822?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 9.1 | < 9.1.1 | 9.1.1 | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Dnnsoftware dotnetnuke to 9.1.1
- CISA’s required action: Apply updates per vendor instructions.due 2022-05-03
Advisories and patches
- www.dnnsoftware.comVendor Advisory
Detection
read 2026-10-23 19:23 UTC- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- 3 repositories, unverifiedmurataydemir/CVE-2017-9822tranphuc2005/CVE-2017-9822Tnot123/cve-2017-9822 PoC-in-GitHub
CISA Known Exploited Vulnerability
- Date Added
- 2021-11-03
- Patch Due Date
- 2022-05-03
- Ransomware Use
- Known
- Required Action
- Apply updates per vendor instructions.
Sources
- CISA KEVKEV entry2021-11-03
- GCVEexploitation2021-11-03
- CISA-ADPSSVC decisionactive2025-02-07
- OpenCVESSVC decisionactive—
- CISA-ADPCVSS 3.18.82025-02-07
- NVDCVSS 3.18.8read 2026-10-23
- NVDCVSS 2.06.5read 2026-10-23
- CISA-ADPweakness (CWE)CWE-942025-02-07
- NVDweakness (CWE)CWE-94read 2026-10-23
- FIRST EPSSEPSS score94.8 %read 2026-10-23
- PoC-in-GitHubproof of concept3read 2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Published
- 2017-07-20
- Last Modified
- 2026-06-17
- NVD status
- Analyzed
Frequently asked questions
What is CVE-2017-9822?
Is CVE-2017-9822 actively exploited?
What is the CVSS score for CVE-2017-9822?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.