PatchTheCEVCVE-2026-110830: FreeRDP before 3.32.0 fails to close prior serial handles in serial_process_irp_create, allowing a malicious R
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MEDIUM 5.9REMOTEUPGRADE
CVE-2026-110830 is a medium-severity flaw (CVSS 5.9) affecting freerdp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
FreeRDP before 3.32.0 fails to close prior serial handles in serial_process_irp_create, allowing a malicious RDP server to exhaust file descriptors. Attackers can send repeated serial IRP_MJ_CREATE requests to accumulate descriptors and terminate the client at the CommReadFile FD_SETSIZE assertion.
Why this priority
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.9 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 85%) |
| CISA exploited list | No |
| Weakness | CWE-400 |
| Published | 2026-10-14 |
| Last modified | 2026-10-23 |
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
freerdp freerdp UPGRADE
Affected: >= 2.0.0 and < 3.32.0
Fixed in: 3.32.0
Safe to downgrade to: a release before 2.0.0
1. Check installed version
apt-cache policy freerdp || rpm -q freerdp || freerdp --version
2. UPGRADE to 3.32.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade freerdp
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade freerdp
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 2.0.0 (Debian / Ubuntu)
apt-cache madison freerdp
sudo apt install freerdp=<VERSION_BEFORE_2.0.0>
sudo apt-mark hold freerdp
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list freerdp
sudo dnf downgrade freerdp-<VERSION_BEFORE_2.0.0>
sudo dnf versionlock add freerdp
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
Exact fixes by distribution
Fedora 46 · clementine · FIXED · 1.4.2-1.fc46 · FEDORA-2026-3e748ef4d3 · source
sudo dnf upgrade --advisory=FEDORA-2026-3e748ef4d3
Ubuntu 24.04 · freerdp3 · FIXED · 3.32.0+dfsg-0ubuntu0.24.04.1
sudo apt update && sudo apt install --only-upgrade freerdp3
dpkg --compare-versions "$(dpkg-query -W -f='${Version}' freerdp3)" ge "3.32.0+dfsg-0ubuntu0.24.04.1" && echo PATCHED || echo STILL-VULNERABLE
Debian 12 · freerdp2 · NO FIX YET
Debian 13 · freerdp3 · NO FIX YET
RHEL 10 · freerdp · DEFERRED
RHEL 6 · freerdp · NOT AFFECTED
RHEL 7 · freerdp · DEFERRED
RHEL 8 · freerdp · DEFERRED
RHEL 9 · freerdp · DEFERRED
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
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