CVE-2021-21826 is a critical heap-based buffer overflow vulnerability affecting AT&T Labs Xmill 0.7. An attacker can exploit this by providing a specially crafted XMI file, leading to arbitrary code execution due to the application trusting a malicious length value during XML decompression. With a CVSS score of 9.8 (Critical), this vulnerability can be exploited remotely without authentication or user interaction, resulting in complete compromise of confidentiality, integrity, and availability. Currently, there is no public exploit code, active exploitation, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
0.7CPE matchmatch criteria | cpe:2.3:a:att:xmill:0.7:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.