VULNERABILITY INTELLIGENCE

CVE-2021-21829

CVSS score9.8 CRITICAL
EPSS probability2.54%
CISA KEVNot currently listed
Published2021-08-13
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

A heap-based buffer overflow vulnerability exists in the XML Decompression EnumerationUncompressor::UncompressItem functionality of AT&T Labs’ Xmill 0.7. A specially crafted XMI file can lead to remote code execution. An attacker can provide a malicious file to trigger this vulnerability.

Weakness classification

  • talos-cna@cisco.com: CWE-122
  • nvd@nist.gov: CWE-787

Primary references