CVE-2020-28407 is a local file overwrite vulnerability affecting swtpm versions before 0.4.2 and 0.5.x before 0.5.1. A local attacker can exploit this flaw via a symlink attack against temporary files, such as TMP2-00.permall, to overwrite arbitrary files. Rated as HIGH severity (CVSS 7.1), it requires local access and has a high impact on integrity and availability. There is no evidence of active exploitation, public exploit code, or inclusion in the CISA KEV catalog, though it has received minimal community discussion and media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.4.2CPE matchmatch criteria | cpe:2.3:a:swtpm_project:swtpm:*:*:*:*:*:*:*:* | ||
0.5.0CPE matchmatch criteria | cpe:2.3:a:swtpm_project:swtpm:0.5.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/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.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.