CVE-2020-4031

high

Published — · Modified —

CVSS v3

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CVSS v2

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VIR risk

8.0

Description

In FreeRDP before version 2.1.2, there is a use-after-free in gdi_SelectObject. All FreeRDP clients using compatibility mode with /relax-order-checks are affected. This is fixed in version 2.1.2.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-4031

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-4031.html

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-202006-15

OS impact

OS	Version	Status	Fixed in
arch		fixed	`2:2.1.2-1`
sles		affected
debian	bookworm	fixed	`2.1.2+dfsg1-1`
debian	bullseye	fixed	`2.1.2+dfsg1-1`

References

https://security.archlinux.org/ASA-202006-15
https://www.suse.com/security/cve/CVE-2020-4031.html
https://security-tracker.debian.org/tracker/CVE-2020-4031

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