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CVE-2021-41526

HIGHCVSS 7.8/10EPSS 0.28%

Last modified

CVE-2021-41526 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A vulnerability has been reported in the windows installer (MSI) built with InstallScript custom action. This vulnerability may allow privilege escalation when invoked ‘repair’ of the MSI which has an InstallScript custom action.. EPSS estimates a 0.28% chance of exploitation in the next 30 days.

Description

A vulnerability has been reported in the windows installer (MSI) built with InstallScript custom action. This vulnerability may allow privilege escalation when invoked ‘repair’ of the MSI which has an InstallScript custom action.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.28%

19.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
FlexeraRevenera Installshield< 2021
FlexeraRevenera Installshield2021

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-41526?
A vulnerability has been reported in the windows installer (MSI) built with InstallScript custom action. This vulnerability may allow privilege escalation when invoked ‘repair’ of the MSI which has an InstallScript custom action.
How severe is CVE-2021-41526?
CVE-2021-41526 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.28% probability of exploitation in the next 30 days.
How do I fix CVE-2021-41526?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-41526?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST