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Fencer Intel
high 8.8

CVE-2026-114045 json

FreeRDP before 3.32.1 Heap Buffer Overflow via rdpsnd_server_select_format

published 20d ago modified 18d ago also EUVD-2026-106996

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

FreeRDP before 3.32.1 contains a heap-based buffer overflow in the server-side rdpsnd channel because an integer wraparound in rdpsnd_server_select_format() DVI_ADPCM block-alignment arithmetic bypasses validation. A malicious RDP client can send two SNDC_FORMATS PDUs with an nBlockAlign too small for nChannels, causing an unbounded heap write during server audio playback, potentially enabling code execution.

Patch / fix

  • FreeRDP FreeRDP 3.32.1
  • freerdp3 Debian 14 3.32.1+dfsg-1

debian advisories DEBIAN-CVE-2026-114045

  • freerdp3 Ubuntu 24.04 LTS 3.32.1+dfsg-0ubuntu0.24.04.1
  • freerdp3 Ubuntu 26.04 LTS 3.32.1+dfsg-0ubuntu0.26.04.1

ubuntu advisories UBUNTU-CVE-2026-114045

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • freerdp AlmaLinux 10 2:3.32.2-1.el10_2
  • libwinpr AlmaLinux 10 2:3.32.2-1.el10_2
  • freerdp-libs AlmaLinux 10 2:3.32.2-1.el10_2
  • freerdp-server AlmaLinux 10 2:3.32.2-1.el10_2

almalinux advisories ALSA-2026:94514

  • freerdp Rocky Linux 10 2:3.32.2-1.el10_2

rocky linux advisories RLSA-2026:94514

Is CVE-2026-114045 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-114045 updated cvss 8.8

freerdp: FreeRDP: heap buffer overflow in server rdpsnd via crafted audio formats

  • Red Hat Enterprise Linux 6 freerdp, freerdp-libs, freerdp-plugins
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 freerdp, libwinpr, freerdp-libs, freerdp-plugins Red Hat Enterprise Linux 8 freerdp, libwinpr, freerdp-libs Red Hat Enterprise Linux 9 freerdp, libwinpr, freerdp-libs
    affected: workaround, no fix available
  • Red Hat Enterprise Linux AppStream (v. 10) freerdp 3.32.2-1.el10_2, libwinpr 3.32.2-1.el10_2, freerdp-libs 3.32.2-1.el10_2 Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) freerdp-server 3.32.2-1.el10_2
    fixed: vendor fix RHSA-2026:94514

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
19d ago

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • FreeRDP FreeRDP

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.