CVE-2021-43041

Public Exploit

Description

An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. A crafted HTTP request could induce a format string vulnerability in the privileged vaultServer application.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.86% Top 30%
Vendor Advisory kaseya.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://helpdesk.kaseya.com/hc/en-gb/articles/4412762258961 vendor advisory
https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1 third party advisory exploit
https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-2 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-43041?
CVE-2021-43041 has been scored as a high severity vulnerability.
How to fix CVE-2021-43041?
To fix CVE-2021-43041, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-43041 being actively exploited in the wild?
It is possible that CVE-2021-43041 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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