An issue was discovered in the Outlook add-in in Pronestor Planner before 8.1.77.

published 2019-12-18 6y ago modified 2026-06-17 4mo ago also EUVD-2019-7794

cvss: 8.2; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

pronestor planner 8.1.77

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Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	8.2	CVSS:3.0/AC:L/AV:L/A:H/C:H/I:H/PR:L/S:C/UI:R
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA	3.0	8.2	CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
NVD	2.0	4.6	AV:L/AC:L/Au:N/C:P/I:P/A:P

References

help.pronestor.com /download/PronestorBooking/ReleaseNotes/ReleaseNotes.htm
vendor-advisory
improsec.com
not-applicable

Sources

CVE List CVE-2019-17390
NVD CVE-2019-17390

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