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TI-2026-84273 Aliases CVE-2026-121391GHSA-33hw-q4mc-wxc2

File descriptor leak in FreeRDP parallel CREATE handling

Priority LOW 24CWE-772Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Partial Red Hat: 1 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-772.

Summary

FreeRDP from 3.0.0 before 3.32.2 contains a file descriptor leak in parallel_process_irp_create that does not close previous descriptors on repeated IRP_MJ_CREATE requests. A hostile RDP server with parallel-device redirection enabled can send repeated CREATE requests to exhaust the client descriptor table and crash the process. The weakness is classified as CWE-772.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

FreeRDP from 3.0.0 before 3.32.2 contains a file descriptor leak in parallel_process_irp_create that fails to close previous descriptors on repeated IRP_MJ_CREATE requests. A hostile RDP server with parallel-device redirection enabled can send repeated CREATE requests to exhaust the client descriptor table and crash the process.

Why it matters now

EPSS 0.00234 14th percentileScored 2026-11-07
Fix Partial FreeRDP (FreeRDP): 3.32.2Red Hat: 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
FreeRDPFreeRDP3.0.0 to before 3.32.23.32.2Patch availableCNA
  • FreeRDP VendorFreeRDP Affected 3.0.0 to before 3.32.2 Fixed in 3.32.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*3.0.0 to before 3.32.2VulnerableFreeRDP
  • cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:* Versions 3.0.0 to before 3.32.2 Vulnerable ·FreeRDP

Remediation

Upgrade FreeRDP to version 3.32.2. The sources list no fixed version for Red Hat Enterprise Linux 10.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

  • Fix · CNA FreeRDP (FreeRDP) Fixed in 3.32.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    FreeRDP 3.32.2

    27 records Highest priority Priority HIGH 3 HIGH, 11 MEDIUM, 13 LOW

    Other records, highest priority first

    • TI-2026-84268 Denial of service in FreeRDP WinPR PNG and JPEG image readersPriority HIGH 77
    • TI-2026-84291 Denial of service in FreeRDP via oversized X.224 routing tokenPriority HIGH 69
    • TI-2026-84280 Use-after-free in FreeRDP dyn-channel-dump modulePriority HIGH 69
    Show all 27 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred
Not affected: 4 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-11-03 Threatist record created from CVE-2026-121391
  2. 2026-11-03 Alias added: GHSA-33hw-q4mc-wxc2
  3. 2026-11-04 Affected versions changed · Red Hat
  4. 2026-11-04 CVSS score added · Red Hat

References

Advisory 1

  • TI-2026-85092 Use-after-free in FreeRDP rdpgfx channel close handling CVSS 4.0CRITICAL 9.3
  • TI-2026-85091 Out-of-bounds write in FreeRDP proxy via bitmap cache v2 capability CVSS 4.0CRITICAL 9.3
  • TI-2026-24435 FreeRDP has a `size_t` underflow in ADPCM decoder leads to heap-buffer-overflow write CVSS 3.1CRITICAL 9.8
  • TI-2023-21373 Out-Of-Bounds Write in FreeRDP CVSS 3.1CRITICAL 9.8
  • TI-2022-08692 Server side NTLM does not properly check parameters in FreeRDP CVSS 3.1CRITICAL 9.1
  • TI-2023-21374 Out-Of-Bounds Read in FreeRDP CVSS 3.1CRITICAL 9.1
See all 336 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences