Summary
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 uninitialized progressive tile handling (CVE-2026-109242)
* freerdp: freerdp: Denial of Service via heap-based buffer overflow during MP3 audio decoding (CVE-2026-110837)
* freerdp: freerdp: Denial of Service via heap out-of-bounds write in NTLM authentication (CVE-2026-111880)
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.
Fixed packages 5
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 8 | freerdp | 2:2.11.7-15.el8_10 |
| AlmaLinux · 8 | freerdp-devel | 2:2.11.7-15.el8_10 |
| AlmaLinux · 8 | freerdp-libs | 2:2.11.7-15.el8_10 |
| AlmaLinux · 8 | libwinpr | 2:2.11.7-15.el8_10 |
| AlmaLinux · 8 | libwinpr-devel | 2:2.11.7-15.el8_10 |
Vulnerabilities 3
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High 7.4
FreeRDP 2.0.0 before 3.32.0 Heap Out-of-Bounds Write via NTLM MIC Offset
FreeRDP versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset. Unauthenticated attackers can send a crafted AUTHENTICATE_MESSAGE with a backward session-key offset and …
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High 7.1
FreeRDP before 3.0.0 and 3.6.0 before 3.32.0 Uninitialized Heap Disclosure via Progressive Codec Tile Upgrade
FreeRDP before 3.0.0 and 3.6.0 before 3.32.0 renders uninitialized heap memory from un-decoded progressive tiles because the tile->current buffer is allocated without zeroing. A malicious RDP server can send a crafted WBT_TILE_FIRST then WBT_TILE_UPGRADE sequ…
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High 7.1
FreeRDP 2.0.0 before 3.32.0 Heap Buffer Overflow via MP3 Audio Decoding
FreeRDP 2.0.0 before 3.32.0, when built with WITH_LAME=ON and WITH_DSP_FFMPEG=OFF, has a heap-based buffer overflow in freerdp_dsp_decode_mp3 because the right-channel PCM pointer is offset by a byte count treated as short elements. A malicious RDP server can…
References
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report
https://access.redhat.com/security/cve/CVE-2026-109242
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report
https://access.redhat.com/security/cve/CVE-2026-110837
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report
https://access.redhat.com/security/cve/CVE-2026-111880
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report
https://bugzilla.redhat.com/2549790
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report
https://bugzilla.redhat.com/2552978
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report
https://bugzilla.redhat.com/2554625
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advisory
https://errata.almalinux.org/8/ALSA-2026-94510.html