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CVE-2018-7531

21
FAUCET Score

CVE-2018-7531 is an improper input validation vulnerability affecting OSIsoft PI Data Archive versions 2017 and prior. Unauthenticated attackers can leverage unvalidated custom requests to crash the server, resulting in a denial-of-service. This medium-severity vulnerability has a CVSS score of 5.9, indicating network-based attacks with high impact on availability and high attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2017CPE matchmatch criteria
cpe:2.3:a:osisoft:pi_data_archive:*:*:*:*:*:*:*:*
2017CPE matchmatch criteria
cpe:2.3:a:osisoft:pi_data_archive:2017:r2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
69.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0141 is in the 41st percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

ics-cert.us-cert.gov / advisories/ICSA-18-072-02
Third Party AdvisoryUS Government Resource
securityfocus.com / bid/103399
Third Party AdvisoryVDB Entry