What’s Vulnerable › Vulnerabilities

CVE-2022-39282: RDP client: Read of uninitialized memory with parallel port redirection

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-10-12 · updated 2026-06-17
• Weakness: CWE-908

Description

FreeRDP is a free remote desktop protocol library and clients. FreeRDP based clients on unix systems using `/parallel` command line switch might read uninitialized data and send it to the server the client is currently connected to. FreeRDP based server implementations are not affected. Please upgrade to 2.8.1 where this issue is patched. If unable to upgrade, do not use parallel port redirection (`/parallel` command line switch) as a workaround.

Affected products

• Fedoraproject Fedora: 35, 36, 37
• FreeRDP: before 2.8.1 — fixed in 2.8.1

How to fix

Upgrade to a fixed version: FreeRDP 2.8.1. Check the vendor advisory for mitigations.

References

• https://github.com/FreeRDP/FreeRDP/releases/tag/2.8.1
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-c45q-wcpg-mxjq
• https://lists.debian.org/debian-lts-announce/2023/11/msg00010.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HEWWYMGWIMD4RDCOGHWMZXUMBGZHC5NW/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RLZCF7YHNC5BECDPEJNAZUYGNNM7NFME/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UDOTAOJBCZKREZJPT6VZ25GESI5T6RBG/
• https://security.gentoo.org/glsa/202210-24
• https://github.com/FreeRDP/FreeRDP/releases/tag/2.8.1
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-c45q-wcpg-mxjq
• https://lists.debian.org/debian-lts-announce/2023/11/msg00010.html
• https://lists.debian.org/debian-lts-announce/2025/02/msg00016.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HEWWYMGWIMD4RDCOGHWMZXUMBGZHC5NW/

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