CVE-2022-26501
Veeam Backup & Replication Remote Code Execution Vulnerability
Veeam Backup & Replication
Veeam Backup & Replication 10.x and 11.x has Incorrect Access Control (issue 1 of 2).
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 13 December 2022. US federal agencies were required to remediate it by 3 January 2023. CISA records this vulnerability as known to be used in ransomware campaigns.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 4.1%, which is higher than 90.5% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2022-26501 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2022-26501.
What does CVE-2022-26501 affect?
CVE-2022-26501 affects Veeam Backup & Replication. Veeam Backup & Replication 10.x and 11.x has Incorrect Access Control (issue 1 of 2).
How severe is CVE-2022-26501?
CVE-2022-26501 is rated CRITICAL with a CVSS base score of 9.8. EPSS puts the probability of exploitation in the next 30 days at 4.1%, higher than 90.5% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 3 January 2023.
How should organisations respond to CVE-2022-26501?
Apply the vendor patch for Veeam Backup & Replication as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.