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Vulnerability Assessment

Weakness
CWE
CWE-427
OWASP Top 10:2025
A08:2025 - Software or Data Integrity Failures
ASVS 5.0
V13 - Configuration Search path element control
Impact

CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required.
Exploit ScenarioDerived

Successful exploitation could compromise the high-severity affected system.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAI

In OSIsoft PI System multiple products and versions, a local attacker can modify a search path and plant a binary to exploit the affected PI System software to take control of the local computer at. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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Technical ContextAI · show details

This vulnerability is classified under CWE-427. In OSIsoft PI System multiple products and versions, a local attacker can modify a search path and plant a binary to exploit the affected PI System software to take control of the local computer at Windows system privilege level, resulting in unauthorized information disclosure, deletion, or modification. Affected products include: Osisoft Pi Api, Osisoft Pi Buffer Subsystem, Osisoft Pi Connector, Osisoft Pi Connector Relay, Osisoft Pi Data Archive.

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Severity by source

NVD PRIMARY 7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

In OSIsoft PI System multiple products and versions, a local attacker can modify a search path and plant a binary to exploit the affected PI System software to take control of the local computer at Windows system privilege level, resulting in unauthorized information disclosure, deletion, or modification.

Threat Intelligence Overview

EPSS Score
0.4%
Top 70% exploitable
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.4%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +39
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:osisoft:pi_api:*:*:*:*:*:*:*:*
cpe:2.3:a:osisoft:pi_api:*:*:*:*:*:windows_integrated_security:*:*
cpe:2.3:a:osisoft:pi_buffer_subsystem:*:*:*:*:*:*:*:*
cpe:2.3:a:osisoft:pi_connector:*:*:*:*:*:ping:*:*
cpe:2.3:a:osisoft:pi_connector:*:*:*:*:*:ethernet\/ip:*:*
cpe:2.3:a:osisoft:pi_connector:*:*:*:*:*:bacnet:*:*
cpe:2.3:a:osisoft:pi_connector:*:*:*:*:*:dc_systems_rtscada:*:*
cpe:2.3:a:osisoft:pi_connector:*:*:*:*:*:siemens_simatic_pcs_7:*:*
cpe:2.3:a:osisoft:pi_connector:*:*:*:*:*:iec_60870-5-104:*:*
cpe:2.3:a:osisoft:pi_connector:*:*:*:*:*:hart-ip:*:*
cpe:2.3:a:osisoft:pi_connector:*:*:*:*:*:opc-ua:*:*
cpe:2.3:a:osisoft:pi_connector:*:*:*:*:*:ufl:*:*
cpe:2.3:a:osisoft:pi_connector:*:*:*:*:*:cygnet:*:*
cpe:2.3:a:osisoft:pi_connector:*:*:*:*:*:wonderware_historian:*:*
cpe:2.3:a:osisoft:pi_connector_relay:*:*:*:*:*:*:*:*
cpe:2.3:a:osisoft:pi_data_archive:*:*:*:*:*:*:*:*
cpe:2.3:a:osisoft:pi_data_collection_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:osisoft:pi_integrator:*:*:*:*:*:business_analytics:*:*
cpe:2.3:a:osisoft:pi_interface_configuration_utility:*:*:*:*:*:*:*:*
cpe:2.3:a:osisoft:pi_to_ocs:*:*:*:*:*:*:*:*

More in Pi Data Archive

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CVE-2020-10608 HIGH
7.8 Jul 24

In OSIsoft PI System multiple products and versions, a local attacker can plant a binary and bypass a code integrity che
CVE-2020-10606 HIGH
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In OSIsoft PI System multiple products and versions, a local attacker can exploit incorrect permissions set by affected

CVE-2018-7533 HIGH
7.8 Mar 14

An Incorrect Default Permissions issue was discovered in OSIsoft PI Data Archive versions 2017 and prior. Rated high sev
CVE-2017-7930 HIGH
7.4 Aug 25

An Improper Authentication issue was discovered in OSIsoft PI Server 2017 PI Data Archive versions prior to 2017. Rated

CVE-2020-10604 HIGH
7.5 Jul 25

In OSIsoft PI System multiple products and versions, a remote, unauthenticated attacker could crash PI Network Manager s
CVE-2018-7529 HIGH
7.5 Mar 14

A Deserialization of Untrusted Data issue was discovered in OSIsoft PI Data Archive versions 2017 and prior. Rated high

CVE-2020-10600 HIGH
7.1 Jul 24

An authenticated remote attacker could crash PI Archive Subsystem when the subsystem is working under memory pressure. R
CVE-2017-7934 MEDIUM
5.9 Aug 25

An Improper Authentication issue was discovered in OSIsoft PI Server 2017 PI Data Archive versions prior to 2017. Rated

CVE-2018-7531 MEDIUM
5.9 Mar 14

An Improper Input Validation issue was discovered in OSIsoft PI Data Archive versions 2017 and prior. Rated medium sever

Same weakness CWE-427 – Uncontrolled Search Path Element

View all
CVE-2020-3153 MEDIUM POC
6.5
CVE-2020-3433 HIGH POC
7.8
CVE-2026-110936 HIGH POC
8.4
CVE-2017-6517 CRITICAL POC
9.8
CVE-2020-27955 CRITICAL POC
9.8
CVE-2024-48990 HIGH POC
7.8
CVE-2022-2334 HIGH POC
7.2
CVE-2024-23054 CRITICAL POC
9.8

Same technique Information Disclosure

View all
CVE-2019-2725 CRITICAL POC
9.8
CVE-2021-34523 CRITICAL POC
9.0
CVE-2013-2251 CRITICAL POC
9.8
CVE-2017-5638 CRITICAL POC
9.8
CVE-2025-24813 CRITICAL POC
9.8
CVE-2025-68613 HIGH POC
8.8
CVE-2015-1701 HIGH POC
7.8
CVE-2017-0147 HIGH POC
7.5

References

Advisories & patches
REF https://us-cert.cisa.gov/ics/advisories/icsa-20-133-02

Search Externally

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