How severe is CVE-2021-43553?

CVE-2021-43553 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-43553 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43553?

CVE-2021-43553 affects Osisoft Pi Vision. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43553?

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

When was CVE-2021-43553 published?

CVE-2021-43553 was published on 2021-11-17 and last updated on 2026-06-17.

CVE-2021-43553

CVE-2021-43553 is a low-severity vulnerability in Osisoft Pi Vision with a CVSS 3.x base score of 3.1. 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-863.

Key facts

Severity: Low (CVSS 3.x base score 3.1)
CVSS v2: 4.0
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Osisoft Pi Vision
Published: 2021-11-17
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-43553?: 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.
How severe is CVE-2021-43553?: CVE-2021-43553 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-43553 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43553?: CVE-2021-43553 affects Osisoft Pi Vision. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43553?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-43553 published?: CVE-2021-43553 was published on 2021-11-17 and last updated on 2026-06-17.

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-313-05

Affected products (1)

cpe:2.3:a:osisoft:pi_vision:*:*:*:*:*:*:*:*

More vulnerabilities in Osisoft Pi Vision

CVE-2018-7500 — Critical (CVSS 9.8): A Permissions, Privileges, and Access Controls issue was discovered in OSIsoft PI Web API versions 2017 R2 and prior.…
CVE-2019-18271 — High (CVSS 8.8): OSIsoft PI Vision, All versions of PI Vision prior to 2019. The affected product is vulnerable to a cross-site request…
CVE-2020-25163 — High (CVSS 7.7): A remote attacker with write access to PI ProcessBook files could inject code that is imported into OSIsoft PI Vision…
CVE-2021-43551 — Medium (CVSS 6.5): A remote attacker with write access to PI Vision could inject code into a display. Unauthorized information disclosure,…
CVE-2020-10643 — Medium (CVSS 6.5): An authenticated remote attacker could use specially crafted URLs to send a victim using PI Vision 2019 mobile to a…
CVE-2019-18275 — Medium (CVSS 6.5): OSIsoft PI Vision, All versions of PI Vision prior to 2019. The affected product is vulnerable to an improper access…

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