High severity · published Oct 12, 2022
CVE-2022-39282
RDP client: Read of uninitialized memory with parallel port redirection
7.5
CVSS
1.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
FreeRDP · FreeRDP
<= 2.8.0 · source: vendor, NVD
FE
Fedora · Fedoraproject
35; 36; 37 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-39282
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-39282
Release Notes
https://github.com/FreeRDP/FreeRDP/releases/tag/2.8.1
Third Party Advisory
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-c45q-wcpg-mxjq
lists.debian.org
https://lists.debian.org/debian-lts-announce/2023/11/msg00010.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HEWWYMGWIMD4RDCOGHWMZXUMBGZHC5NW/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RLZCF7YHNC5BECDPEJNAZUYGNNM7NFME/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UDOTAOJBCZKREZJPT6VZ25GESI5T6RBG/
More from FreeRDP
9.8
CVE-2026-63633
FreeRDP: Heap buffer overflow in Opus audio decode (`freerdp_dsp_decode_opus` resizes the wrong stream) — server→client
9.8
CVE-2026-55194
FreeRDPHeap-buffer-overflow write in TS Gateway RPC RESPONSE reassembly due to alloc_hint capacity mismatch
9.8
CVE-2026-55191
FreeRDP: Heap-buffer-overflow write in AVC444 YUV buffer allocation
9.8
CVE-2026-66402
FreeRDP before 3.29.0 TLS Certificate Identity Validation Bypass
9.8
CVE-2026-57156
FreeRDP: Integer overflow leading to heap buffer overflow in Orders Delta Points parsing