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TI-2026-78657 Aliases CVE-2026-114044

Heap out-of-bounds read in FreeRDP Android client graphics pipeline

Priority LOW 36CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

FreeRDP before 3.32.1 contains a heap out-of-bounds read in its Android client. The client does not validate the mappedWidth and mappedHeight values supplied by the server (CWE-125). A malicious RDP server can send oversized dimensions, so the client reads beyond surface buffers, which can crash the client or disclose heap memory.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

FreeRDP before 3.32.1 contains a heap out-of-bounds read vulnerability in the Android client that allows malicious RDP servers to read beyond surface buffers by supplying unvalidated mappedWidth and mappedHeight values. Attackers can send a crafted RDPGFX_MAP_SURFACE_TO_WINDOW_PDU with oversized dimensions, causing android_UpdateWindowFromSurface to copy heap memory beyond the allocation, leading to crashes or memory disclosure.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0025 16th percentileScored 2026-11-07
Fix Fixed FreeRDP (FreeRDP): 3.32.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FreeRDPFreeRDPbefore 3.32.13.32.1Patch availableCNA
  • FreeRDP VendorFreeRDP Affected before 3.32.1 Fixed in 3.32.1 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*——FreeRDP
  • cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:* Versions — — ·FreeRDP

Remediation

Update FreeRDP to version 3.32.1, which fixes the flaw. Earlier versions are affected.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA FreeRDP (FreeRDP) Fixed in 3.32.1

Fixed in the same release

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

  • Release ·

    FreeRDP 3.32.1

    5 records Highest priority Priority MEDIUM 3 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2026-78656 Out-of-bounds read in FreeRDP clipboard PNG handlingPriority MEDIUM 64
    • TI-2026-78655 Use-after-free in FreeRDP drdynvc channel crashes clientsPriority MEDIUM 64
    • TI-2026-78658 Heap buffer overflow in FreeRDP server audio channelPriority MEDIUM 40
    Show all 5 records →

Vendor assessments

Red Hat

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

Not affected: 5 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-114044
  2. 2026-10-21 Affected versions changed · Red Hat
  3. 2026-10-21 CVSS score added · Red Hat
  4. 2026-10-22 Priority changed: MEDIUM → LOW
  5. 2026-10-28 CISA SSVC decision points changed

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 346 →

Sources

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