CVE-2017-12623

Name: CVE-2017-12623
Creator: NVD / NIST
Published: 2017-10-10T18:29:00.197+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.94%

Last modified Jun 17, 2026

CVE-2017-12623 is a vulnerability of currently unknown severity. An authorized user could upload a template which contained malicious code and accessed sensitive files via an XML External Entity (XXE) attack. The fix to properly handle XML External Entities was applied on the Apache NiFi 1.4.0 release. EPSS estimates a 1.94% chance of exploitation in the next 30 days.

Description

An authorized user could upload a template which contained malicious code and accessed sensitive files via an XML External Entity (XXE) attack. The fix to properly handle XML External Entities was applied on the Apache NiFi 1.4.0 release. Users running a prior 1.x release should upgrade to the appropriate release.

Metrics

EPSS Probability

1.94%

77.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-611

Affected Software

Vendor	Product	Versions
Apache	Nifi	1.0.0
Apache	Nifi	1.0.1
Apache	Nifi	1.1.0
Apache	Nifi	1.1.1
Apache	Nifi	1.1.2
Apache	Nifi	1.2.0
Apache	Nifi	1.3.0

References

https://nifi.apache.org/security.html#CVE-2017-12623Vendor Advisory
https://nifi.apache.org/security.html#CVE-2017-12623Vendor Advisory

Timeline

Published: Oct 10, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-12623?

How severe is CVE-2017-12623?

Severity scoring for CVE-2017-12623 is pending analysis. The EPSS model estimates a 1.94% probability of exploitation in the next 30 days.

How do I fix CVE-2017-12623?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-12623?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST