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TI-2020-08959 Aliases CVE-2020-11085

Out-of-bounds Read in FreeRDP

Priority LOW 20CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

In FreeRDP before 2.1.0, there is an out-of-bounds read in cliprdr_read_format_list. Clipboard format data read (by client or server) might read data out-of-bounds. This has been fixed in 2.1.0.

Why it matters now

EPSS 0.0175 77th percentileScored 2026-11-07
Fix Fixed FreeRDP (FreeRDP): 2.1.0Red Hat: 2 advisories

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
FreeRDPFreeRDPbefore 2.1.02.1.0Patch availableCNA
  • FreeRDP VendorFreeRDP Affected before 2.1.0 Fixed in 2.1.0 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*before 2.1.0VulnerableFreeRDP
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*15.1VulnerableopenSUSE
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
  • cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:* Versions before 2.1.0 Vulnerable ·FreeRDP
  • cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian

Remediation

  • Fix · CNA FreeRDP (FreeRDP) Fixed in 2.1.0

Red Hat 2 advisories

  • RHSA-2020:4647 Released 2020-11-04 · Red Hat rating Moderate
    freerdp and vinagre security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) freerdp-devel-2:2.1.1-1.el8
    • Red Hat Enterprise Linux AppStream (v. 8) freerdp-2:2.1.1-1.el8, freerdp-libs-2:2.1.1-1.el8, libwinpr-2:2.1.1-1.el8 +2
  • RHSA-2020:4031 Released 2020-09-29 · Red Hat rating Moderate
    freerdp security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) freerdp-2.1.1-2.el7, freerdp-libs-2.1.1-2.el7, libwinpr-2.1.1-2.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) freerdp-devel-2.1.1-2.el7, libwinpr-devel-2.1.1-2.el7
    • Red Hat Enterprise Linux Server (v. 7) freerdp-2.1.1-2.el7, freerdp-libs-2.1.1-2.el7, freerdp-libs-2.1.1-2.el7.ppc +2
    • Red Hat Enterprise Linux Server Optional (v. 7) freerdp-devel-2.1.1-2.el7, freerdp-devel-2.1.1-2.el7.ppc, libwinpr-devel-2.1.1-2.el7 +1
    • Red Hat Enterprise Linux Workstation (v. 7) freerdp-2.1.1-2.el7, freerdp-libs-2.1.1-2.el7, libwinpr-2.1.1-2.el7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) freerdp-devel-2.1.1-2.el7, libwinpr-devel-2.1.1-2.el7

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2020:4647
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2020:4647
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:4031
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:4031
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:4031
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:4031
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:4031
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:4031
Not affected: 1 product
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-11085

References

Patch 2

Advisory 2

  • 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