ALAS2023-2026-2142: Security update for 11 packages

ALAS2023-2026-2142, released September 14, 2026, fixes 19 CVEs across 11 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.0067

52nd percentile

Priority of the 19 CVEs

Patch now 0
                                Urgent 0
                                High 13
                                Routine 6

Fixed package versions

Product	Release	Fixed in
freerdp	amzn 2023	2:3.31.0-1.amzn2023
freerdp-debuginfo	amzn 2023	2:3.31.0-1.amzn2023
freerdp-debugsource	amzn 2023	2:3.31.0-1.amzn2023
freerdp-devel	amzn 2023	2:3.31.0-1.amzn2023
freerdp-libs	amzn 2023	2:3.31.0-1.amzn2023
freerdp-libs-debuginfo	amzn 2023	2:3.31.0-1.amzn2023
freerdp-server	amzn 2023	2:3.31.0-1.amzn2023
freerdp-server-debuginfo	amzn 2023	2:3.31.0-1.amzn2023
libwinpr	amzn 2023	2:3.31.0-1.amzn2023
libwinpr-debuginfo	amzn 2023	2:3.31.0-1.amzn2023
libwinpr-devel	amzn 2023	2:3.31.0-1.amzn2023

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-91963	freerdp3: FreeRDP versions before 3.31.0 contain an uninitialized heap memory disclosure vulnerability in the urbdrc USB redire...	8.8	0.0067	None reported
High	CVE-2026-63633	freerdp: FreeRDP is a free implementation of the Remote Desktop Protocol	9.8	0.0062	None reported
High	CVE-2026-91964	freerdp3: FreeRDP versions before 3.31.0 contain a heap-based buffer overflow in nego_send_negotiation_request when processing...	8.8	0.0060	None reported
High	CVE-2026-63652	freerdp3: FreeRDP is a free implementation of the Remote Desktop Protocol	8.8	0.0058	None reported
High	CVE-2026-91949	freerdp3: FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated...	9.3	0.0058	None reported
High	CVE-2026-91946	freerdp3: FreeRDP versions before 3.31.0 contain an information disclosure vulnerability in the RDPGFX server's ResetGraphics P...	8.8	0.0053	None reported
High	CVE-2026-91953	freerdp: FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license	8.8	0.0047	None reported
High	CVE-2026-91950	freerdp3: FreeRDP before 3.31.0 contains an out-of-bounds read vulnerability in the rdpdr_dump_packet function due to 32-bit un...	8.8	0.0040	None reported
High	CVE-2026-91956	freerdp: FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license	8.8	0.0039	None reported
High	CVE-2026-91959	freerdp: FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license	8.8	0.0039	None reported
High	CVE-2026-85089	freerdp3: FreeRDP versions 3.0.0 through 3.30.0 (before 3.31.0) transmit uninitialized heap memory in Save Session Info PDU res...	8.8	0.0038	None reported
High	CVE-2026-91947	freerdp3: FreeRDP server versions before 3.31.0 contain a use-after-free vulnerability in the DRDYNVC parser that dereferences...	8.8	0.0037	None reported
High	CVE-2026-69159	freerdp3: FreeRDP is a free implementation of the Remote Desktop Protocol	8.8	n/a	None reported
Routine	CVE-2026-91945	freerdp3: FreeRDP versions before 3.31.0 contain an out-of-bounds read vulnerability in smartcard response decoders that fail t...	6.5	0.0058	None reported
Routine	CVE-2026-63117	freerdp3: FreeRDP is a free implementation of the Remote Desktop Protocol	6.5	0.0055	None reported
Routine	CVE-2026-91961	freerdp3: FreeRDP before 3.31.0 contains a denial-of-service vulnerability in the URBDRC control-transfer request path that fai...	n/a	0.0037	None reported
Routine	CVE-2026-91957	freerdp3: FreeRDP before 3.31.0 contains a use-after-free vulnerability in the smartcard RDPDR device handler when worker threa...	n/a	0.0037	None reported
Routine	CVE-2026-85090	freerdp3: FreeRDP before 3.31.0 contains a heap out-of-bounds read vulnerability in the general_ChromaV1ToYUV444 function durin...	n/a	0.0028	None reported
Routine	CVE-2026-91958	freerdp3: FreeRDP versions before 3.31.0 fail to validate MonitorIds array values when parsing RDP connection files, allowing u...	n/a	0.0020	None reported

Also fixes CVE-2026-91963

freerdp-proxy 3.31.0+dfsg-0ubuntu0.26.04.1
freerdp-proxy on Ubuntu 26.04.1 LTS (resolute)
freerdp-proxy-modules 3.31.0+dfsg-0ubuntu0.26.04.1
freerdp-proxy-modules on Ubuntu 26.04.1 LTS (resolute)
freerdp-sdl 3.31.0+dfsg-0ubuntu0.26.04.1
freerdp-sdl on Ubuntu 26.04.1 LTS (resolute)
freerdp-shadow-x11 3.31.0+dfsg-0ubuntu0.26.04.1
freerdp-shadow-x11 on Ubuntu 26.04.1 LTS (resolute)
freerdp-wayland 3.31.0+dfsg-0ubuntu0.26.04.1
freerdp-wayland on Ubuntu 26.04.1 LTS (resolute)
freerdp-x11 3.31.0+dfsg-0ubuntu0.26.04.1
freerdp-x11 on Ubuntu 26.04.1 LTS (resolute)
freerdp3-proxy 3.31.0+dfsg-0ubuntu0.26.04.1
freerdp3-proxy on Ubuntu 26.04.1 LTS (resolute)
freerdp3-proxy-modules 3.31.0+dfsg-0ubuntu0.26.04.1
freerdp3-proxy-modules on Ubuntu 26.04.1 LTS (resolute)

Vendor advisory

https://alas.aws.amazon.com/AL2023/ALAS-2026-2142.html

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/fix/linux/alas2023-2026-2142">ALAS2023-2026-2142 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Which servers are still behind?

Patchblox compares the installed package on every Linux machine against the fixed version for its release, including machines reported through Azure Update Manager.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.