How severe is CVE-2017-9822?

CVE-2017-9822 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-9822 being actively exploited?

Yes. CVE-2017-9822 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2017-9822?

CVE-2017-9822 affects Dnnsoftware Dotnetnuke. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-9822?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2017-9822 have an EU (EUVD) identifier?

Yes. CVE-2017-9822 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2018-0710. It is also flagged as exploited in the EUVD (since 2021-11-03).

When was CVE-2017-9822 published?

CVE-2017-9822 was published on 2017-07-20 and last updated on 2026-06-17.

CVE-2017-9822

CVE-2017-9822 is a high-severity vulnerability in Dnnsoftware Dotnetnuke with a CVSS 3.x base score of 8.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2021-11-03). The underlying weakness is classified as CWE-94.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 95% (100th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2021-11-03)
EU (EUVD) id: EUVD-2018-0710
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2021-11-03)
Weakness: CWE-94
Affected product: Dnnsoftware Dotnetnuke
Published: 2017-07-20
Last modified: 2026-06-17

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."

Frequently asked questions

What is 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."
How severe is CVE-2017-9822?: CVE-2017-9822 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-9822 being actively exploited?: Yes. CVE-2017-9822 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2017-9822?: CVE-2017-9822 affects Dnnsoftware Dotnetnuke. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-9822?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2017-9822 have an EU (EUVD) identifier?: Yes. CVE-2017-9822 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2018-0710. It is also flagged as exploited in the EUVD (since 2021-11-03).
When was CVE-2017-9822 published?: CVE-2017-9822 was published on 2017-07-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*

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