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openSUSE 15.4 freerdp Important Heap Buffer Overflow Vuln 2026-0421-1

suse
Calendar Grey February 10, 2026
Dist Suse Esm H88
Critical freerdp update for SUSE addresses multiple issues including heap buffer overflows, essential installation instructions provided.
An update that solves eight vulnerabilities can now be installed.

Summary

## This update for freerdp fixes the following issues: * CVE-2026-22852: a malicious RDP server can trigger a heap-buffer-overflow in audin_process_formats (bsc#1256718). * CVE-2026-22854: server-controlled read length is used to read file data into an IRP output can cause heap-buffer-overflow in drive_process_irp_read (bsc#1256720). * CVE-2026-22856: race condition in the serial channel IRP thread tracking can cause heap-use-after-free in create_irp_thread(bsc#1256722). * CVE-2026-22859: improper bound check can lead to heap-buffer-overflow in urb_select_configuration (bsc#1256725). * CVE-2026-23530: improper validation can lead to heap buffer overflow in `planar_decompress_plane_rle` (bsc#1256940). * CVE-2026-23531: improper validation in `clear_decompress` can lead to heap

Topics%20covered

Topics Covered

security advisory SuSE important OpenSUSE heap buffer overflow freerdp

References

* bsc#1256718

* bsc#1256720

* bsc#1256722

* bsc#1256725

* bsc#1256940

* bsc#1256941

* bsc#1256942

* bsc#1256944

Cross-

* CVE-2026-22852

* CVE-2026-22854

* CVE-2026-22856

* CVE-2026-22859

* CVE-2026-23530

* CVE-2026-23531

* CVE-2026-23532

* CVE-2026-23534

CVSS scores:

* CVE-2026-22852 ( SUSE ): 7.7

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

* CVE-2026-22852 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

* CVE-2026-22852 ( NVD ): 6.8

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2026-22852 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-22854 ( SUSE ): 7.7

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0421-1
Release Date: 2026-02-10T15:28:57Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important OpenSUSE heap buffer overflow freerdp

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