CVE-2022-26507: Att Xmill

Critical severity, CVSS 9.8. EPSS: 2.4% chance of exploitation in the next 30 days.

A heap-based buffer overflow exists in XML Decompression DecodeTreeBlock in AT&T Labs Xmill 0.7. A crafted input file can lead to remote code execution. This is not the same as any of: CVE-2021-21810, CVE-2021-21811, CVE-2021-21812, CVE-2021-21815, CVE-2021-21825, CVE-2021-21826, CVE-2021-21828, CVE-2021-21829, or CVE-2021-21830. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Affected products

• Att Xmill: version 0.7 only
• Schneider Electric Ecostruxure Control Expert: before 15.1 (fixed in 15.1); version 15.1 only
• Schneider Electric Ecostruxure Process Expert: before 2021 (fixed in 2021)
• Schneider Electric Remoteconnect: affected versions not specified

Published 2022-04-14. Last modified 2026-06-17.