RHSA-2026:68706 - Security Advisory

Topic

An update for freerdp is now available for Red Hat Enterprise Linux 10.0 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox.

Security Fix(es):

• FreeRDP: FreeRDP: Denial of Service via malformed media data (CVE-2026-67290)
• FreeRDP: FreeRDP: Resource exhaustion due to oversized chunked HTTP responses (CVE-2026-67297)
• FreeRDP: FreeRDP: Memory disclosure or denial of service via crafted RDP update orders (CVE-2026-67301)
• FreeRDP: FreeRDP: Denial of Service via crafted smartcard cache requests (CVE-2026-67288)
• FreeRDP: FreeRDP: Denial of Service via heap out-of-bounds read (CVE-2026-67291)
• FreeRDP: FreeRDP: Denial of Service due to RDPEI message processing (CVE-2026-67296)
• FreeRDP: FreeRDP: Denial of Service via null pointer dereference in smartcard cleanup (CVE-2026-67304)
• FreeRDP: FreeRDP: Denial of Service via integer underflow in RAIL channel handling (CVE-2026-67298)
• FreeRDP: FreeRDP: Out-of-bounds memory access in Kerberos decryption (CVE-2026-73242)
• FreeRDP: FreeRDP: Authentication bypass via incorrect RDSTLS PDU handling (CVE-2026-73241)
• FreeRDP: FreeRDP: Denial of Service and heap corruption via malformed RDP audio PDU (CVE-2026-63652)
• FreeRDP: FreeRDP: Out-of-bounds read leads to memory disclosure or client crash (CVE-2026-55192)
• FreeRDP: FreeRDP: Heap-buffer-overflow allows arbitrary code execution via crafted RPC response (CVE-2026-55194)
• freerdp: FreeRDP: Arbitrary code execution via heap buffer overflow in Opus audio decode (CVE-2026-63633)
• FreeRDP: FreeRDP: Out-of-bounds read leads to denial of service and information disclosure (CVE-2026-69159)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.0 x86_64
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.0 s390x
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.0 ppc64le
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.0 aarch64
• Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 10.0 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 10.0 ppc64le
• Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 10.0 s390x
• Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 10.0 aarch64
• Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.0 aarch64
• Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.0 s390x
• Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.0 ppc64le
• Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.0 x86_64

Fixes

• BZ - 2509984 - CVE-2026-67290 FreeRDP: FreeRDP: Denial of Service via malformed media data
• BZ - 2509986 - CVE-2026-67297 FreeRDP: FreeRDP: Resource exhaustion due to oversized chunked HTTP responses
• BZ - 2509994 - CVE-2026-67301 FreeRDP: FreeRDP: Memory disclosure or denial of service via crafted RDP update orders
• BZ - 2510001 - CVE-2026-67288 FreeRDP: FreeRDP: Denial of Service via crafted smartcard cache requests
• BZ - 2510010 - CVE-2026-67291 FreeRDP: FreeRDP: Denial of Service via heap out-of-bounds read
• BZ - 2510029 - CVE-2026-67296 FreeRDP: FreeRDP: Denial of Service due to RDPEI message processing
• BZ - 2510034 - CVE-2026-67304 FreeRDP: FreeRDP: Denial of Service via null pointer dereference in smartcard cleanup
• BZ - 2510041 - CVE-2026-67298 FreeRDP: FreeRDP: Denial of Service via integer underflow in RAIL channel handling
• BZ - 2514346 - CVE-2026-73242 FreeRDP: FreeRDP: Out-of-bounds memory access in Kerberos decryption
• BZ - 2514349 - CVE-2026-73241 FreeRDP: FreeRDP: Authentication bypass via incorrect RDSTLS PDU handling
• BZ - 2519822 - CVE-2026-63652 FreeRDP: FreeRDP: Denial of Service and heap corruption via malformed RDP audio PDU
• BZ - 2519823 - CVE-2026-55192 FreeRDP: FreeRDP: Out-of-bounds read leads to memory disclosure or client crash
• BZ - 2519824 - CVE-2026-55194 FreeRDP: FreeRDP: Heap-buffer-overflow allows arbitrary code execution via crafted RPC response
• BZ - 2519826 - CVE-2026-63633 freerdp: FreeRDP: Arbitrary code execution via heap buffer overflow in Opus audio decode
• BZ - 2519828 - CVE-2026-69159 FreeRDP: FreeRDP: Out-of-bounds read leads to denial of service and information disclosure

CVEs

• CVE-2026-55194
• CVE-2026-63633
• CVE-2026-63652
• CVE-2026-67288
• CVE-2026-67290
• CVE-2026-67291
• CVE-2026-67296
• CVE-2026-67297
• CVE-2026-67298
• CVE-2026-67301
• CVE-2026-67304
• CVE-2026-69159
• CVE-2026-73241
• CVE-2026-73242

References

• https://access.redhat.com/security/updates/classification/#important