CWE
120 119
Advisory Published
Updated

CVE-2021-43042: Buffer Overflow

First published: Mon Dec 06 2021(Updated: )

An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. A buffer overflow existed in the vaultServer component. This was exploitable by a remote unauthenticated attacker.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Kaseya Unitrends Backup>=10.0<10.5.5
>=10.0<10.5.5

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Frequently Asked Questions

  • What is the severity of CVE-2021-43042?

    CVE-2021-43042 is classified as a high-severity vulnerability due to the potential for remote unauthenticated exploitation.

  • How do I fix CVE-2021-43042?

    To fix CVE-2021-43042, upgrade Kaseya Unitrends Backup Appliance to version 10.5.5 or later.

  • Who is affected by CVE-2021-43042?

    CVE-2021-43042 affects all versions of Kaseya Unitrends Backup prior to version 10.5.5.

  • What type of attack does CVE-2021-43042 facilitate?

    CVE-2021-43042 enables remote unauthenticated attackers to exploit a buffer overflow.

  • What component of Kaseya is involved in CVE-2021-43042?

    The vaultServer component of Kaseya Unitrends Backup Appliance is involved in CVE-2021-43042.

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