Vulnerability · Published Aug 18, 2021 · Assigned by talos
CVE-2021-21825
High 8.1
In plain English
A high-severity heap buffer overflow in AT&T. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 83% of all known vulnerabilities).
Severity (CVSS 3.0)8.1High
Exploit odds (30 days)2.3%top 16.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A heap-based buffer overflow vulnerability exists in the XML Decompression PlainTextUncompressor::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.
Affected products (as reported)
Weakness: CWE-122 · Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1290 x_refsource_MISC