What is CVE-2018-7531?

CVE-2018-7531 is a medium-severity vulnerability in Osisoft Pi Data Archive, classified under Improper Input Validation. CVSS score: 5.9/10. Published 2018-03-14.

How severe is CVE-2018-7531?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Improper input validation in Osisoft Pi Data Archive

CVE-2018-7531

An Improper Input Validation issue was discovered in OSIsoft PI Data Archive versions 2017 and prior. Unauthenticated users may use unvalidated custom requests to crash the server.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2018-03-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.014 (71.8th percentile), scored 2026-10-21.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.014 · change: +0.001

Affected products

Osisoft Pi Data Archive — versions 2017
Osisoft Pi Data Archive — versions OSIsoft PI Data Archive

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

ics-cert.us-cert.gov/advisories/ICSA-18-072-02 (US Government Resource, Third Party Advisory)
www.securityfocus.com/bid/103399 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2018-7531?: CVE-2018-7531 is a medium-severity vulnerability in Osisoft Pi Data Archive, classified under Improper Input Validation. CVSS score: 5.9/10. Published 2018-03-14.
How severe is CVE-2018-7531?: Medium severity. CVSS v3 base score is 5.9 out of 10.