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TI-2024-21541 Aliases CVE-2024-32660

FreeRDP zgfx_decompress out of memory vulnerability

Priority MEDIUM 41CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 2 fixed, 3 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-770.

Summary

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.5.1, a malicious server can crash the FreeRDP client by sending invalid huge allocation size. Version 3.5.1 contains a patch for the issue. No known workarounds are available.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01168 67th percentileScored 2026-11-07
Fix Partial FreeRDP (FreeRDP): 3.5.1Red Hat: 1 advisoryRed Hat: 2 fixed, 3 without a fix

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 3.5.13.5.1Patch availableCNA
  • FreeRDP VendorFreeRDP Affected before 3.5.1 Fixed in 3.5.1 Patch available CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*before 2.11.7; 3.0.0 to before 3.5.1VulnerableFreeRDP
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*38VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*39VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*40VulnerableFedoraproject
  • cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:* Versions before 2.11.7; 3.0.0 to before 3.5.1 Vulnerable ·FreeRDP
  • cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* Versions 38 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* Versions 39 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:* Versions 40 Vulnerable ·Fedoraproject

Remediation

  • Fix · CNA FreeRDP (FreeRDP) Fixed in 3.5.1

Red Hat 1 advisory

  • RHSA-2024:9092 Released 2024-11-12 · Red Hat rating Moderate
    freerdp security update
    • Red Hat CodeReady Linux Builder (v. 9) freerdp-devel-2:2.11.7-1.el9, libwinpr-devel-2:2.11.7-1.el9
    • Red Hat Enterprise Linux AppStream (v. 9) freerdp-2:2.11.7-1.el9, freerdp-libs-2:2.11.7-1.el9, libwinpr-2:2.11.7-1.el9

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat CodeReady Linux Builder (v. 9)Fixed RHSA-2024:9092
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:9092
Not affected: 1 product
  • Red Hat Enterprise Linux 10

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-32660

References

Patch 1

Advisory 5

Other 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