Description
PI Vision could disclose information to a user with insufficient privileges for an AF attribute that is the child of another attribute and is configured as a Limits property.
Timeline
ID reserved
By icscert
- 9 days later
· 9 days later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| icscertCNA (assigner) | 3.1 | Low3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVDNVD · Modified | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.56% · top 53% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.1.
Weakness
Affected products
What to do
Workaround: OSIsoft recommends upgrading to PI vision 2021. Information can be found in the OSIsoft PI Vision security bulletin (registration required). OSIsoft recommends users apply the following workarounds for PI Vision to help reduce risk: Configure Publisher and Explorer roles in PI Vision User Access Levels to restrict which users can create or modify displays. Remove any Limits properties from AF child attributes using PI System Explorer or a bulk editing tool. OSIsoft recommends the following defense measures to lower the impact of exploitation for PI Vision: Use a modern web browser such as Microsoft Edge, Google Chrome, or Mozilla FireFox. Do not use Microsoft Internet Explorer. If upgrade is not an option, administrators should regularly audit the AF hierarchy to ensure there are no unexpected or unknown elements, attributes, or attribute properties. It is recommended security on elements in AF be configured and enforced in addition to configuring PI point security. Potential unauthorized viewing of PI System data due to this issue is limited to permissions granted to the PI Vision Application Pool Identity. Configure a dedicated identity mapping for PI Vision servers and manage permissions in accordance with a data classification policy. See OSIsoft customer portal knowledge article for additional details and associated security updates (registration required).
References (1)
- https://us-cert.cisa.gov/ics/advisories/icsa-21-313-05 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-43553)Record last updated .