CVE-2021-45464 describes an out-of-bounds write vulnerability in kvmtool, specifically within the virtio/balloon.c and virtio/pci.c components, affecting kvmtool up to commit 39181fc. This critical flaw allows a guest operating system user to execute arbitrary code on the host machine. With a CVSS score of 8.8 (High), it presents a significant risk due to its low attack complexity and the potential for complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation, public exploit code, or KEV listing, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity community.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:kvmtool_project:kvmtool:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.