CVE-2018-7500

highpriority · track · 40EPSS 0.018 · 79 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.85% (79th) EPSS

CVSS 7.5 · high

Is it mine?

6 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

A Permissions, Privileges, and Access Controls issue was discovered in OSIsoft PI Web API versions 2017 R2 and prior. Privileges may be escalated, giving attackers access to the PI System via the service account.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedPI Web APIcisa_csaf_ot
OSIsoft recommends that users upgrade to PI Vision 2017 R2 Update 1 or PI AF Services 2017 R2 Update 1, which both address the PI Web API vulnerabilities. OBtain the updates from OSIsoft.
MitigationPI Web APIcisa_csaf_ot
OSIsoft has released the following alert
https://techsupport.osisoft.com/Troubleshooting/Alerts/AL00336

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.09.3criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:Nsecondary · CISA US

v3.09criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-264USCWE-284US

affected products (6)

Products and version ranges known to be affected.

PI Web API: versions 2017 R2 and priorall versionscisa_csaf_otUS
OSIsoft LLC PI Web API≤ 2017 R2cisa_csaf_otUS
n/a OSIsoft PI Web API≤ OSIsoft PI Web APIenisa_euvdEU
osisoft pi vision= 2017nvdUScpe:2.3:a:osisoft:pi_vision:*:*:*:*:*:*:*:*
osisoft pi web api≤ 2017nvdUScpe:2.3:a:osisoft:pi_web_api:*:*:*:*:*:*:*:*
osisoft pi web api= 2017nvdUScpe:2.3:a:osisoft:pi_web_api:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-18-072-04OSIsoft PI Web API2018-03-13icsa · cisa_csaf_otUS
ATTENTION: Exploitable remotely/low skill level to exploit.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2018-03-14modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

https://ics-cert.us-cert.gov/advisories/ICSA-18-072-04 cnnvd
https://techsupport.osisoft.com/Troubleshooting/Alerts/AL00337Patchcnnvd
https://www.securityfocus.com/bid/103396 cnnvd
http://www.securityfocus.com/bid/103396 enisa_euvd
https://ics-cert.us-cert.gov/advisories/ICSA-18-072-04 enisa_euvd
http://www.securityfocus.com/bid/103396Third Party AdvisoryVDB Entrynvd
https://ics-cert.us-cert.gov/advisories/ICSA-18-072-04MitigationThird Party AdvisoryUS Government Resourcenvd

scry

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