CVE-2022-26507

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-04-14 · updated 2026-06-17
Weakness: CWE-787

Description

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: 0.7
Schneider Electric EcoStruxure Control Expert: before 15.1; 15.1 — fixed in 15.1
Schneider Electric EcoStruxure Process Expert: before 2021 — fixed in 2021
Schneider Electric RemoteConnect: all versions

How to fix

Upgrade to a fixed version: Schneider Electric EcoStruxure Control Expert 15.1; Schneider Electric EcoStruxure Process Expert 2021. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2022-26507 or the next vulnerability affects your stack