CVE-2026-109240Low· 3.1▾ TwilightPoC available

FreeRDP 3.11.0 before 3.32.1 contains a reachable assertion vulnerability in urb_isoch_transfer that allows malicious RDP servers to crash clients by sending unvalidated OutputBufferSize values

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score29/ 100 · Low

impact 17.1 · likelihood 0.1 · exploitation 12

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

A public proof-of-concept already exists for this vulnerability — see Exploit availability below.

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Published

Oct 12, 2026

Updated

Oct 14, 2026

CVSS

3.1

Vendor

Red Hat

Product

Red Hat Enterprise Linux 10

CWE

CWE-617

Depth score

29 · Low

EPSS

0.27% · p18

Platforms

—

Source

NVD

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

CISA SSVC

decided 2026-10-13

Exploitation: poc
Automatable: no
Technical impact: partial

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Oct 13.

0.2% → 0.3%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

5 events · 14 days

Oct 12, 2026Published
Disclosed via NVD
Oct 13, 2026EPSS first tracked
0.2%
Oct 14, 2026Record revised
Last analysed / modified upstream
Oct 15, 2026Public exploit observed
Exploit / PoC code exists
Oct 26, 2026EPSS peak
0.2% → 0.3%

Red Hat CWE-617 #nvd #csaf #vex #red-hat #cve.org #exploit-available

Affected

enterprise_linux 10

Full technical detail▾

Overview

FreeRDP 3.11.0 before 3.32.1 contains a reachable assertion vulnerability in urb_isoch_transfer that allows malicious RDP servers to crash clients by sending unvalidated OutputBufferSize values. Attackers can send a TS_URB_ISOCH_TRANSFER IN-direction request with OutputBufferSize above INT32_MAX over URBDRC, triggering an assertion in libusb_udev_isoch_transfer that terminates the client.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

Vendor advisories

Red Hat VEX · Low · affected: Red Hat Enterprise Linux 10 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-10-13 · vex

References

Change history

Field changes observed since this record was first indexed.

Oct 15, 2026Public exploit / PoC published

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#csaf#vex#red-hat#cve.org#exploit-available

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