SEPTEMBER 29, 2026
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Case File

CVE-2021-21811

CRITICAL · CVSS 9.8 EPSS 1.14%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-08-31 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. See the original NVD description below for full technical details.

CVE
CVE-2021-21811
Severity
CRITICAL
CVSS
9.8
EPSS
1.14%

Original NVD Description

A memory corruption vulnerability exists in the XML-parsing CreateLabelOrAttrib functionality of AT&T Labs’ Xmill 0.7. A specially crafted XML file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

Related CVEs

Other vulnerabilities affecting the same vendor(s)