CVE catalog

CVE-2026-31884

FreeRDP vulnerabilities

Severity: Medium · CVSS 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published: Mar 12, 2026, 11:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.32% · Oct 25, 2026

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, division by zero in MS-ADPCM and IMA-ADPCM decoders when nBlockAlign is 0, leading to a crash. In libfreerdp/codec/dsp.c, both ADPCM decoders use size % block_size where block_size = context->common.format.nBlockAlign. The nBlockAlign value comes from the Server Audio Formats PDU on the RDPSND channel. The value 0 is not validated anywhere before reaching the decoder. When nBlockAlign = 0, the modulo operation causes a SIGFPE (floating point exception) crash. This vulnerability is fixed in 3.24.0.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	freerdp2	bookworm	`2.11.7+dfsg1-6~deb12u1`	vulnerable
Ubuntu	freerdp2	noble	Not reported	vulnerable
Ubuntu	freerdp3	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	fixed
Ubuntu	freerdp3-dev	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	fixed
Ubuntu	freerdp3-shadow-x11	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	fixed
Ubuntu	freerdp3-wayland	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	fixed
Ubuntu	freerdp3-x11	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	fixed
Ubuntu	libfreerdp-client3-3	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	fixed
Ubuntu	libfreerdp-server3-3	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	fixed
Ubuntu	libfreerdp-shadow-subsystem3-3	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	fixed
Ubuntu	libfreerdp-shadow3-3	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	fixed
Ubuntu	libfreerdp3-3	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	fixed
Ubuntu	libwinpr-tools3-3	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	fixed
Ubuntu	libwinpr3-3	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	fixed
Ubuntu	libwinpr3-dev	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	fixed
Ubuntu	winpr3-utils	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	fixed
Ubuntu	freerdp	16.04	`1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1`	vulnerable
Ubuntu	freerdp	16.04	`1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.2`	vulnerable
Ubuntu	freerdp	16.04	`1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3`	vulnerable
Ubuntu	freerdp	16.04	`1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4`	vulnerable
Ubuntu	freerdp2	pro	`2.10.0+dfsg1-1.1ubuntu1`	vulnerable
Ubuntu	freerdp2	pro	`2.11.2+dfsg1-1`	vulnerable
Ubuntu	freerdp2	pro	`2.11.2+dfsg1-1build1`	vulnerable
Ubuntu	freerdp2	pro	`2.11.2+dfsg1-1build3`	vulnerable
Ubuntu	freerdp2	pro	`2.11.5+dfsg1-1build1`	vulnerable
Ubuntu	freerdp2	pro	`2.11.5+dfsg1-1build2`	vulnerable
Ubuntu	freerdp2	pro	`2.11.5+dfsg1-1ubuntu0.1~esm1`	vulnerable
Ubuntu	freerdp2	pro	`2.11.5+dfsg1-1ubuntu0.1~esm2`	vulnerable
Ubuntu	freerdp2	pro	`2.11.5+dfsg1-1ubuntu0.1~esm3`	vulnerable
Ubuntu	freerdp2	pro	`2.11.5+dfsg1-1ubuntu0.1~esm4`	vulnerable
Ubuntu	freerdp2	pro	`2.11.5+dfsg1-1ubuntu0.1~esm5`	vulnerable
Ubuntu	freerdp2	pro	`2.11.5+dfsg1-1ubuntu0.1~esm6`	vulnerable
Ubuntu	freerdp	18.04	`1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1`	vulnerable
Ubuntu	freerdp	18.04	`1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.1`	vulnerable
Ubuntu	freerdp	18.04	`1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.2`	vulnerable
Ubuntu	freerdp2	22.04	`2.3.0+dfsg1-2build1`	vulnerable
Ubuntu	freerdp2	22.04	`2.3.0+dfsg1-2ubuntu1`	vulnerable
Ubuntu	freerdp2	22.04	`2.3.0+dfsg1-2ubuntu2`	vulnerable
Ubuntu	freerdp2	22.04	`2.4.1+dfsg1-1`	vulnerable
Ubuntu	freerdp2	22.04	`2.4.1+dfsg1-1ubuntu1`	vulnerable
Ubuntu	freerdp2	22.04	`2.4.1+dfsg1-1ubuntu2`	vulnerable
Ubuntu	freerdp2	22.04	`2.5.0+dfsg1-1`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.0+dfsg1-1`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.1+dfsg1-1`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.1+dfsg1-3`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.1+dfsg1-3ubuntu1`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.1+dfsg1-3ubuntu2`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.1+dfsg1-3ubuntu2.1`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.1+dfsg1-3ubuntu2.2`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.1+dfsg1-3ubuntu2.3`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.1+dfsg1-3ubuntu2.4`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.1+dfsg1-3ubuntu2.5`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.1+dfsg1-3ubuntu2.6`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.1+dfsg1-3ubuntu2.7`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.1+dfsg1-3ubuntu2.8`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.1+dfsg1-3ubuntu2.9`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.1+dfsg1-3ubuntu2.10`	vulnerable
Ubuntu	freerdp2	22.04	`2.6.1+dfsg1-3ubuntu2.11`	vulnerable
Ubuntu	freerdp3	24.04	`3.4.0+dfsg1-0ubuntu2`	vulnerable
Ubuntu	freerdp3	24.04	`3.4.0+dfsg1-0ubuntu3`	vulnerable
Ubuntu	freerdp3	24.04	`3.4.0+dfsg1-0ubuntu4`	vulnerable
Ubuntu	freerdp3	24.04	`3.5.0+dfsg1-0ubuntu1`	vulnerable
Ubuntu	freerdp3	24.04	`3.5.1+dfsg1-0ubuntu1`	vulnerable
Ubuntu	freerdp3	24.04	`3.5.1+dfsg1-0ubuntu1.1`	vulnerable
Ubuntu	freerdp3	24.04	`3.5.1+dfsg1-0ubuntu1.2`	vulnerable
Ubuntu	freerdp3	24.04	`3.5.1+dfsg1-0ubuntu1.4`	vulnerable
Ubuntu	freerdp3	24.04	`3.5.1+dfsg1-0ubuntu1.5`	vulnerable
Ubuntu	freerdp3	24.04	`3.5.1+dfsg1-0ubuntu1.6`	vulnerable
Ubuntu	freerdp3	24.04	`3.30.0+dfsg-0ubuntu0.24.04.1`	fixed
Ubuntu	freerdp3	25.10	`3.14.0+dfsg-1ubuntu1`	vulnerable
Ubuntu	freerdp3	25.10	`3.15.0+dfsg-2.1`	vulnerable
Ubuntu	freerdp3	25.10	`3.16.0+dfsg-1ubuntu1`	vulnerable
Ubuntu	freerdp3	25.10	`3.16.0+dfsg-2`	vulnerable
Ubuntu	freerdp3	25.10	`3.16.0+dfsg-2ubuntu0.1`	vulnerable
Ubuntu	freerdp3	25.10	`3.16.0+dfsg-2ubuntu0.3`	vulnerable
Ubuntu	freerdp3	25.10	`3.16.0+dfsg-2ubuntu0.4`	vulnerable
Ubuntu	freerdp3	25.10	`3.16.0+dfsg-2ubuntu0.5`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	freerdp2	source	bookworm	`(unfixed)`	not yet assigned	Not reported	Not reported
Ubuntu	freerdp3	deb	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Ubuntu	freerdp3-dev	deb	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Ubuntu	freerdp3-shadow-x11	deb	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Ubuntu	freerdp3-wayland	deb	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Ubuntu	freerdp3-x11	deb	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Ubuntu	libfreerdp-client3-3	deb	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Ubuntu	libfreerdp-server3-3	deb	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Ubuntu	libfreerdp-shadow-subsystem3-3	deb	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Ubuntu	libfreerdp-shadow3-3	deb	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Ubuntu	libfreerdp3-3	deb	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Ubuntu	libwinpr-tools3-3	deb	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Ubuntu	libwinpr3-3	deb	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Ubuntu	libwinpr3-dev	deb	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Ubuntu	winpr3-utils	deb	noble	`3.30.0+dfsg-0ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Ubuntu	freerdp3	deb	24.04	`3.30.0+dfsg-0ubuntu0.24.04.1`	Not reported	UBUNTU-CVE-2026-31884	Not reported

Notes

[bookworm] freerdp2: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[freerdp2-dev]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
[freerdp2-shadow-x11]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
[freerdp2-wayland]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
[freerdp2-x11]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
[libfreerdp2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
[libfreerdp-client2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
[libfreerdp-server2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
[libfreerdp-shadow2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
[libfreerdp-shadow-subsystem2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
[libuwac0-0]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
[libuwac0-dev]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
[libwinpr2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
[libwinpr2-dev]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
[libwinpr-tools2-2]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
[winpr-utils]Affected
Source package: [freerdp2]
Details (2)
- 2.11.7+dfsg1-6~deb12u1 · amd64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- 2.11.7+dfsg1-6~deb12u1 · arm64 · bookworm
  Affected
  usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12

[Debian 13 (Trixie)]

[freerdp3-dev]Fixed
Source package: [freerdp3]
Details (4)
- 3.15.0+dfsg-2.1+deb13u3 · amd64 · trixie
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
- 3.15.0+dfsg-2.1+deb13u3 · arm64 · trixie
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
- 3.30.0+dfsg-1~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
- 3.30.0+dfsg-1~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
[freerdp3-proxy]Fixed
Source package: [freerdp3]
Details (4)
- 3.15.0+dfsg-2.1+deb13u3 · amd64 · trixie
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
- 3.15.0+dfsg-2.1+deb13u3 · arm64 · trixie
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
- 3.30.0+dfsg-1~bpo13+1 · all · trixie-backports
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
- 3.30.0+dfsg-1~bpo13+1 · all · trixie-backports
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
[freerdp3-proxy-modules]Fixed
Source package: [freerdp3]
Details (4)
- 3.15.0+dfsg-2.1+deb13u3 · amd64 · trixie
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
- 3.15.0+dfsg-2.1+deb13u3 · arm64 · trixie
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
- 3.30.0+dfsg-1~bpo13+1 · all · trixie-backports
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
- 3.30.0+dfsg-1~bpo13+1 · all · trixie-backports
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
[freerdp3-sdl]Fixed
Source package: [freerdp3]
Details (4)
- 3.15.0+dfsg-2.1+deb13u3 · amd64 · trixie
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
- 3.15.0+dfsg-2.1+deb13u3 · arm64 · trixie
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
- 3.30.0+dfsg-1~bpo13+1 · all · trixie-backports
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
- 3.30.0+dfsg-1~bpo13+1 · all · trixie-backports
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
[freerdp3-shadow-x11]Fixed
Source package: [freerdp3]
Details (4)
- 3.15.0+dfsg-2.1+deb13u3 · amd64 · trixie
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
- 3.15.0+dfsg-2.1+deb13u3 · arm64 · trixie
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
- 3.30.0+dfsg-1~bpo13+1 · all · trixie-backports
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13
- 3.30.0+dfsg-1~bpo13+1 · all · trixie-backports
  Fixed · Fixed: 3.15.0+dfsg-2.1+deb13u2
  usn · freerdp3 · debian · 13

Next results

Observed: Oct 24, 2026, 12:37:11 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]