CVE-2026-91950

EUVD-2026-78807
FreeRDP before 3.31.0 contains an out-of-bounds read vulnerability in the rdpdr_dump_packet function due to 32-bit unsigned integer wraparound in buffer bounds validation. A malicious RDP server can send a crafted RDPDR packet with computerNameLen set to 0xFFFFFFF0 to bypass bounds checks and trigger memory reads past the packet buffer, causing client crashes or heap disclosure in logs.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 34.29%
Affected Products (NVD)
VendorProductVersion
freerdpfreerdp
𝑥
< 3.31.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
freerdp2
bookworm
vulnerable
freerdp3
forky
3.32.2+dfsg-1
fixed
sid
3.32.2+dfsg-1
fixed
trixie
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
freerdp
bionic
needs-triage
jammy
dne
noble
dne
resolute
dne
xenial
needs-triage
freerdp2
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
dne
freerdp3
jammy
dne
noble
Fixed 3.31.0+dfsg-0ubuntu0.24.04.1
released
resolute
Fixed 3.31.0+dfsg-0ubuntu0.26.04.1
released
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
freerdp
Amazon Linux 2023
2:3.31.0-1.amzn2023
fixed
freerdp-debuginfo
Amazon Linux 2023
2:3.31.0-1.amzn2023
fixed
freerdp-debugsource
Amazon Linux 2023
2:3.31.0-1.amzn2023
fixed
freerdp-devel
Amazon Linux 2023
2:3.31.0-1.amzn2023
fixed
freerdp-libs
Amazon Linux 2023
2:3.31.0-1.amzn2023
fixed
freerdp-libs-debuginfo
Amazon Linux 2023
2:3.31.0-1.amzn2023
fixed
freerdp-server
Amazon Linux 2023
2:3.31.0-1.amzn2023
fixed
freerdp-server-debuginfo
Amazon Linux 2023
2:3.31.0-1.amzn2023
fixed
libwinpr
Amazon Linux 2023
2:3.31.0-1.amzn2023
fixed
libwinpr-debuginfo
Amazon Linux 2023
2:3.31.0-1.amzn2023
fixed
libwinpr-devel
Amazon Linux 2023
2:3.31.0-1.amzn2023
fixed