CVE-2021-32846 is a denial-of-service and potential memory corruption vulnerability affecting HyperKit versions prior to 0.20210107, specifically within the virtio-sock component's pci_vtsock_proc_tx function. A guest operating system can trigger uninitialized memory use due to insufficient return value checks, leading to a host crash. With a CVSS score of 7.8 (High), this local attack requires low privileges and has a high impact on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 0.20210107CPE matchmatch criteria | cpe:2.3:a:mobyproject:hyperkit:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/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.
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.