OSIsoft PI System software (Applications using PI Asset Framework (AF) Client versions prior to PI AF Client 2016, Version 2.8.0; Applicati…

published 2018-04-03 8 y ago modified 2026-06-17 4 mo ago also EUVD-2016-9213

cvss: 5.5; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 28%
public exploits: 0; none known

OSIsoft PI System software (Applications using PI Asset Framework (AF) Client versions prior to PI AF Client 2016, Version 2.8.0; Applications using PI Software Development Kit (SDK) versions prior to PI SDK 2016, Version 1.4.6; PI Buffer Subsystem, versions prior to and including, Version 4.4; and PI Data Archive versions prior to PI Data Archive 2015, Version 3.4.395.64) operates between endpoints without a complete model of endpoint features potentially causing the product to perform actions based on this incomplete model, which could result in a denial of service. OSIsoft reports that in order to exploit the vulnerability an attacker would need to be locally connected to a server. A CVSS v3 base score of 7.1 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)

Patch / fix

fixed in 4

osisoft pi_af_client 2.8.0
osisoft pi_buffer_subsystem 4.5.0
osisoft pi_data_archive 3.4.400.1162
osisoft pi_sdk 1.4.6

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-16-313-03 updated 2025-06-05 cvss 7.1

OSIsoft PI System Incomplete Model of Endpoint Features Vulnerability

OSIsoft Applications using PI Asset Framework (AF) Client 2016 <2.8.0 OSIsoft Applications using PI Software Development Kit (SDK) 2016 <1.4.6 OSIsoft PI Buffer Subsystem <=4.4 OSIsoft PI Data Archive 2105 <3.4.395.64
affected: mitigation techsupport.osisoft.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	5.5	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	2.1	AV:L/AC:L/Au:N/C:N/I:N/A:P

Affected products

OSIsoft PI System software

Classification

Weakness

CWE-437 Incomplete Model of Endpoint Features
CWE-284 Improper Access Control

References

techsupport.osisoft.com /Troubleshooting/Alerts/AL00308
vendor-advisory
ics-cert.us-cert.gov /advisories/ICS-VU-313-03
third-party-advisory, us-government-resource
securityfocus.com /bid/94165
vdb-entry, third-party-advisory

Sources

CVE List CVE-2016-8365
NVD CVE-2016-8365

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary