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openSUSE freerdp Important Heap Overflow Remote Exec Fix 2026-21116-1

opensuse
Calendar Grey June 30, 2026
Dist Opensuse Esm H88
openSUSE's freerdp update addresses critical issues, enhancing security against various exploits and vulnerabilities.
An update that solves 11 vulnerabilities and has 12 bug fixes can now be installed.

Description

This update for freerdp fixes the following issues

Update to version 3.26.0:

- CVE-2026-33982: heap-buffer-overflow READ vulnerability at 24 bytes before the allocation, in

winpr_aligned_offset_recalloc() (bsc#1261222).

- CVE-2026-33985: FreeRDP: Information disclosure via heap memory out of bounds read (bsc#1261217).

- CVE-2026-33986: heap OOB write due to H.264 YUV buffer dimension desync (bsc#1261223).

- CVE-2026-33987: heap OOB write due to persistent cache bmpSize desync (bsc#1261226).

- CVE-2026-33995: double-free vulnerability in kerberos_AcceptSecurityContext() and

kerberos_InitializeSecurityContextA() (bsc#1261227).

- CVE-2026-40033: heap buffer overflow in `gdi_CacheToSurface` allows attackers to cause a denial of service or achieve

remote execute code (bsc#1266317).

- CVE-2026-40254: off-by-one in contains_dotdot() allows drive channel path traversal (bsc#1262743).

- CVE-2026-44420: Prior to 3.26.0, a malicious RDP client can trigger a heap-buffer-overflow write in...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory remote execution important heap overflow OpenSUSE freerdp

Patch

Package List

- openSUSE Leap 16.0:

freerdp-3.26.0-160000.1.1

freerdp-devel-3.26.0-160000.1.1

freerdp-proxy-3.26.0-160000.1.1

freerdp-proxy-plugins-3.26.0-160000.1.1

freerdp-sdl-3.26.0-160000.1.1

freerdp-server-3.26.0-160000.1.1

freerdp-wayland-3.26.0-160000.1.1

libfreerdp-server-proxy3-3-3.26.0-160000.1.1

libfreerdp3-3-3.26.0-160000.1.1

librdtk0-0-3.26.0-160000.1.1

libuwac0-0-3.26.0-160000.1.1

libwinpr3-3-3.26.0-160000.1.1

rdtk0-devel-3.26.0-160000.1.1

uwac0-devel-3.26.0-160000.1.1

winpr-devel-3.26.0-160000.1.1

References

* bsc#1174200

* bsc#1261217

* bsc#1261222

* bsc#1261223

* bsc#1261226

* bsc#1261227

* bsc#1262743

* bsc#1266317

* bsc#1267008

* bsc#1267009

* bsc#1267010

* bsc#1267011

References:

* https://www.suse.com/security/cve/CVE-2026-33982.html

* https://www.suse.com/security/cve/CVE-2026-33985.html

* https://www.suse.com/security/cve/CVE-2026-33986.html

* https://www.suse.com/security/cve/CVE-2026-33987.html

* https://www.suse.com/security/cve/CVE-2026-33995.html

* https://www.suse.com/security/cve/CVE-2026-40033.html

* https://www.suse.com/security/cve/CVE-2026-40254.html

* https://www.suse.com/security/cve/CVE-2026-44420.html

* https://www.suse.com/security/cve/CVE-2026-44421.html

* https://www.suse.com/security/cve/CVE-2026-44422.html

* https://www.suse.com/security/cve/CVE-2026-45700.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2026:21116-1
Rating: important
Affected Products: openSUSE Leap 16.0 -------------------------------------------------------------

Topics%20covered

Topics Covered

security advisory remote execution important heap overflow OpenSUSE freerdp

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