PatchTheCVECVE-2021-43551: A remote attacker with write access to PI Vision could inject code into a display
CVE-2021-43551 is a medium-severity flaw (CVSS 6.5) affecting pi vision. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A remote attacker with write access to PI Vision could inject code into a display. Unauthorized information disclosure, modification, or deletion is possible if a victim views or interacts with the infected display using Microsoft Internet Explorer. The impact affects PI System data and other data accessible with victim's user permissions.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.5 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | Low |
| User interaction | Required |
| EPSS exploit chance | 0.6% (top 50%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2021-11-17 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-43551?
pi vision: upgrade to 2021. Exact commands for each OS are on this page.
Is CVE-2021-43551 being exploited?
CVE-2021-43551 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-43551 affect?
CVE-2021-43551 affects pi vision. Severity is medium (CVSS 6.5). A remote attacker with write access to PI Vision could inject code into a display. Unauthorized information disclosure, modification, or deletion is possible if a victim views or interacts with the infected display using Microsoft Internet
How urgent is CVE-2021-43551?
Priority 35/100. No elevated risk signals yet.
Software pages
Internet Explorer vulnerabilities
Related CVEs
- CVE-2021-43553 LOW 3.1 UPGRADE PI Vision could disclose information to a user with insufficient privileges for an AF attribute that is the ch
- CVE-2020-25167 MEDIUM 4.9 UPGRADE OSIsoft PI Vision 2020 versions prior to 3.5.0 could disclose information to a user with insufficient privileg
- CVE-2020-25163 HIGH 7.7 UPGRADE A remote attacker with write access to PI ProcessBook files could inject code that is imported into OSIsoft PI