How severe is CVE-2018-7531?

CVE-2018-7531 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-7531 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-7531?

CVE-2018-7531 primarily affects Osisoft Pi Data Archive. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-7531?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-7531 published?

CVE-2018-7531 was published on 2018-03-14 and last updated on 2026-06-17.

CVE-2018-7531

CVE-2018-7531 is a medium-severity vulnerability in Osisoft Pi Data Archive with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 7.1
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Osisoft Pi Data Archive
Published: 2018-03-14
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2018-7531?: CVE-2018-7531 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-7531 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-7531?: CVE-2018-7531 primarily affects Osisoft Pi Data Archive. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-7531?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-7531 published?: CVE-2018-7531 was published on 2018-03-14 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:osisoft:pi_data_archive:*:*:*:*:*:*:*:*
cpe:2.3:a:osisoft:pi_data_archive:2017:r2:*:*:*:*:*:*

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