What is CVE-2019-17390?

CVE-2019-17390 is a high-severity vulnerability in Pronestor Planner. CVSS score: 7.8/10. Published 2019-12-18.

How severe is CVE-2019-17390?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Pronestor Planner

CVE-2019-17390

An issue was discovered in the Outlook add-in in Pronestor Planner before 8.1.77. There is local privilege escalation in the Health Monitor service because PronestorHealthMonitor.exe access control is mishandled, aka PNB-2359.

Published 2019-12-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (29.7th percentile), scored 2026-10-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Pronestor Planner

References

improsec.com (Not Applicable)
help.pronestor.com/download/PronestorBooking/ReleaseNotes/ReleaseNotes.htm (Vendor Advisory)

Frequently asked questions

What is CVE-2019-17390?: CVE-2019-17390 is a high-severity vulnerability in Pronestor Planner. CVSS score: 7.8/10. Published 2019-12-18.
How severe is CVE-2019-17390?: High severity. CVSS v3 base score is 7.8 out of 10.