RHSA-2026:61378: Important: freerdp security update
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: 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: 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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
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redhat/freerdpto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10 - Upgrade
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redhat/freerdp-debuginfoto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10 - Upgrade
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redhat/freerdp-debugsourceto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10 - Upgrade
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redhat/freerdp-libsto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10 - Upgrade
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redhat/freerdp-libs-debuginfoto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10 - Upgrade
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redhat/freerdp-server-debuginfoto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10 - Upgrade
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redhat/libwinprto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10 - Upgrade
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redhat/libwinpr-debuginfoto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10 - Upgrade
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redhat/freerdpto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10.aa - Upgrade
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redhat/freerdp-debuginfoto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10.aa - Upgrade
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redhat/freerdp-debugsourceto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10.aa - Upgrade
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redhat/freerdp-libsto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10.aa - Upgrade
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redhat/freerdp-libs-debuginfoto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10.aa - Upgrade
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redhat/freerdp-server-debuginfoto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10.aa - Upgrade
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redhat/libwinprto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10.aa - Upgrade
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redhat/libwinpr-debuginfoto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10.aa - Upgrade
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redhat/freerdp-develto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10 - Upgrade
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redhat/freerdp-serverto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10 - Upgrade
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redhat/libwinpr-develto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10 - Upgrade
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redhat/freerdp-develto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10.aa - Upgrade
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redhat/freerdp-serverto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10.aa - Upgrade
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redhat/libwinpr-develto a version that resolves this vulnerability.Fixed in 3.10.3-12.el10_2.10.aa
Event History
Frequently Asked Questions
Which deployments are most relevant to this update?
Deployments using FreeRDP, particularly the xfreerdp client to connect to RDP servers such as Microsoft Windows machines, xrdp, or VirtualBox, are relevant. The affected software list also includes FreeRDP libraries and libwinpr packages.
What would an attacker need to send to trigger the reported issues?
The listed flaws involve specially crafted protocol content, including oversized chunked HTTP responses, RDP update orders, smartcard cache requests, RDPEI messages, RAIL channel data, Kerberos decryption data, RDSTLS PDUs, and RDP audio PDUs. Reported impacts include resource exhaustion, denial of service, memory disclosure, heap corruption, out-of-bounds memory access, and an authentication bypass.