CVE-2020-28407

medium

Published — · Modified —

CVSS v3

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CVSS v2

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VIR risk

5.5

Description

In swtpm before 0.4.2 and 0.5.x before 0.5.1, a local attacker may be able to overwrite arbitrary files via a symlink attack against a temporary file such as TMP2-00.permall.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-28407

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-28407.html

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-202011-21

OS impact

OS	Version	Status	Fixed in
arch		fixed	`0.5.1-1`
sles		affected
debian	forky	fixed	`0`
debian	sid	fixed	`0`
debian	bookworm	fixed	`0`
debian	trixie	fixed	`0`

References

https://security.archlinux.org/ASA-202011-21
https://www.suse.com/security/cve/CVE-2020-28407.html
https://security-tracker.debian.org/tracker/CVE-2020-28407

Verify integrity in audit chain (admin only). AS-IS.