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CVE-2026-121953 FreeRDP before 3.32.2 Use-After-Free via rdpgfx Dynamic Virtual Channel Close

CriticalCVSS 9.3 EPSS 0.56%
Published
Updated
Exploit status
No public exploit known

Description

FreeRDP before 3.32.2 has a use-after-free in the client's rdpgfx dynamic virtual channel: a duplicate-name channel with a new ChannelId overwrites the listener's single callback slot, which rdpgfx_on_close frees without clearing. A malicious RDP server can open and close such a channel, then send a PDU on the original channel to crash the client or potentially execute code.

Affected products

ProductAffected versionsFixed in
FreeRDP < 3.32.2 3.32.2
redhat/freerdp(Red Hat:enterprise_linux:10) All versions No fix listed
redhat/freerdp(Red Hat:rhel_els:7) All versions No fix listed
redhat/freerdp(Red Hat:enterprise_linux:8) All versions No fix listed
redhat/freerdp(Red Hat:enterprise_linux:9) All versions No fix listed
debian/freerdp2(Debian:12) All versions No fix listed
debian/freerdp2(Debian:12) = 2.10.0+dfsg1-1 No fix listed
debian/freerdp2(Debian:12) = 2.10.0+dfsg1-1.1 No fix listed
debian/freerdp2(Debian:12) = 2.11.2+dfsg1-1 No fix listed
debian/freerdp2(Debian:12) = 2.11.2+dfsg1-1.1~exp1 No fix listed
debian/freerdp2(Debian:12) = 2.11.2+dfsg1-1.1~exp2 No fix listed
debian/freerdp2(Debian:12) = 2.11.5+dfsg1-1 No fix listed
debian/freerdp2(Debian:12) = 2.11.7+dfsg1-1 No fix listed
debian/freerdp2(Debian:12) = 2.11.7+dfsg1-2 No fix listed
debian/freerdp2(Debian:12) = 2.11.7+dfsg1-3 No fix listed
debian/freerdp2(Debian:12) = 2.11.7+dfsg1-4 No fix listed
debian/freerdp2(Debian:12) = 2.11.7+dfsg1-5 No fix listed
debian/freerdp2(Debian:12) = 2.11.7+dfsg1-6 No fix listed
debian/freerdp2(Debian:12) = 2.11.7+dfsg1-6~deb12u1 No fix listed
debian/freerdp3(Debian:13) All versions No fix listed
debian/freerdp3(Debian:13) = 3.15.0+dfsg-2.1 No fix listed
debian/freerdp3(Debian:13) = 3.15.0+dfsg-2.1+deb13u1 No fix listed
debian/freerdp3(Debian:13) = 3.15.0+dfsg-2.1+deb13u2 No fix listed
debian/freerdp3(Debian:13) = 3.15.0+dfsg-2.1+deb13u3 No fix listed
debian/freerdp3(Debian:13) = 3.16.0+dfsg-1 No fix listed
Show 93 more
ProductAffected versionsFixed in
debian/freerdp3(Debian:13) = 3.16.0+dfsg-2 No fix listed
debian/freerdp3(Debian:13) = 3.17.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.17.1+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.17.1+dfsg-2 No fix listed
debian/freerdp3(Debian:13) = 3.17.2+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.17.2+dfsg-2 No fix listed
debian/freerdp3(Debian:13) = 3.17.2+dfsg-3 No fix listed
debian/freerdp3(Debian:13) = 3.18.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.19.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.19.1+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.20.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.20.2+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.21.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.22.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.22.0+dfsg-1~bpo13+0 No fix listed
debian/freerdp3(Debian:13) = 3.22.0+dfsg-1~bpo13+1 No fix listed
debian/freerdp3(Debian:13) = 3.22.0+dfsg-3 No fix listed
debian/freerdp3(Debian:13) = 3.23.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.23.0+dfsg-1~bpo13+1 No fix listed
debian/freerdp3(Debian:13) = 3.24.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.24.0+dfsg-2 No fix listed
debian/freerdp3(Debian:13) = 3.24.1+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.24.2+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.24.2+dfsg-1~bpo13+1 No fix listed
debian/freerdp3(Debian:13) = 3.25.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.25.0+dfsg-2 No fix listed
debian/freerdp3(Debian:13) = 3.25.0+dfsg-3 No fix listed
debian/freerdp3(Debian:13) = 3.25.0+dfsg-4 No fix listed
debian/freerdp3(Debian:13) = 3.25.0+dfsg-5 No fix listed
debian/freerdp3(Debian:13) = 3.26.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.26.0+dfsg-1~bpo13+1 No fix listed
debian/freerdp3(Debian:13) = 3.27.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.27.1+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.28.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.28.0+dfsg-2 No fix listed
debian/freerdp3(Debian:13) = 3.29.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.30.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.30.0+dfsg-1~bpo13+1 No fix listed
debian/freerdp3(Debian:13) = 3.31.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.31.1+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.31.1+dfsg-1~bpo13+1 No fix listed
debian/freerdp3(Debian:13) = 3.32.0+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.32.1+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.32.1+dfsg-1~bpo13+1 No fix listed
debian/freerdp3(Debian:13) = 3.32.2+dfsg-1 No fix listed
debian/freerdp3(Debian:13) = 3.33.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) < 3.32.2+dfsg-1 3.32.2+dfsg-1
debian/freerdp3(Debian:14) = 3.15.0+dfsg-2.1 No fix listed
debian/freerdp3(Debian:14) = 3.16.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.16.0+dfsg-2 No fix listed
debian/freerdp3(Debian:14) = 3.17.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.17.1+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.17.1+dfsg-2 No fix listed
debian/freerdp3(Debian:14) = 3.17.2+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.17.2+dfsg-2 No fix listed
debian/freerdp3(Debian:14) = 3.17.2+dfsg-3 No fix listed
debian/freerdp3(Debian:14) = 3.18.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.19.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.19.1+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.20.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.20.2+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.21.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.22.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.22.0+dfsg-1~bpo13+0 No fix listed
debian/freerdp3(Debian:14) = 3.22.0+dfsg-1~bpo13+1 No fix listed
debian/freerdp3(Debian:14) = 3.22.0+dfsg-3 No fix listed
debian/freerdp3(Debian:14) = 3.23.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.23.0+dfsg-1~bpo13+1 No fix listed
debian/freerdp3(Debian:14) = 3.24.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.24.0+dfsg-2 No fix listed
debian/freerdp3(Debian:14) = 3.24.1+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.24.2+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.24.2+dfsg-1~bpo13+1 No fix listed
debian/freerdp3(Debian:14) = 3.25.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.25.0+dfsg-2 No fix listed
debian/freerdp3(Debian:14) = 3.25.0+dfsg-3 No fix listed
debian/freerdp3(Debian:14) = 3.25.0+dfsg-4 No fix listed
debian/freerdp3(Debian:14) = 3.25.0+dfsg-5 No fix listed
debian/freerdp3(Debian:14) = 3.26.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.26.0+dfsg-1~bpo13+1 No fix listed
debian/freerdp3(Debian:14) = 3.27.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.27.1+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.28.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.28.0+dfsg-2 No fix listed
debian/freerdp3(Debian:14) = 3.29.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.30.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.30.0+dfsg-1~bpo13+1 No fix listed
debian/freerdp3(Debian:14) = 3.31.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.31.1+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.31.1+dfsg-1~bpo13+1 No fix listed
debian/freerdp3(Debian:14) = 3.32.0+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.32.1+dfsg-1 No fix listed
debian/freerdp3(Debian:14) = 3.32.1+dfsg-1~bpo13+1 No fix listed

References