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CVE-2022-26500

High CVSS 8.8 Known exploited

Published 2022-03-17 · last changed 2026-06-17 · added to CISA KEV 2022-12-13

This one is being exploited in the wild.

CISA added CVE-2022-26500 to the Known Exploited Vulnerabilities catalog on 2022-12-13. Federal agencies are required to remediate it on a deadline. If you have affected machines, this is the class of finding that moves ahead of the rest of the queue.

The fix

We hold no Microsoft remediation data for CVE-2022-26500, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

Improper limitation of path names in Veeam Backup & Replication 9.5U3, 9.5U4,10.x, and 11.x allows remote authenticated users access to internal API functions that allows attackers to upload and execute arbitrary code.

Sources

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