How severe is CVE-2018-7529?

CVE-2018-7529 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-7529 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-7529?

CVE-2018-7529 affects Osisoft Pi Data Archive. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-7529?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-7529 published?

CVE-2018-7529 was published on 2018-03-14 and last updated on 2026-06-17.

CVE-2018-7529

CVE-2018-7529 is a high-severity vulnerability in Osisoft Pi Data Archive with a CVSS 3.x base score of 7.5. 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-502.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Osisoft Pi Data Archive
Published: 2018-03-14
Last modified: 2026-06-17

Description

A Deserialization of Untrusted Data issue was discovered in OSIsoft PI Data Archive versions 2017 and prior. Unauthenticated users may modify deserialized data to send custom requests that crash the server.

Frequently asked questions

What is CVE-2018-7529?: A Deserialization of Untrusted Data issue was discovered in OSIsoft PI Data Archive versions 2017 and prior. Unauthenticated users may modify deserialized data to send custom requests that crash the server.
How severe is CVE-2018-7529?: CVE-2018-7529 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-7529 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-7529?: CVE-2018-7529 affects Osisoft Pi Data Archive. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-7529?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-7529 published?: CVE-2018-7529 was published on 2018-03-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:osisoft:pi_data_archive:*:*:*:*:*:*:*:*

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