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TI-2022-18659 Aliases CVE-2022-39283

FreeRDP may read and display out of bounds data

Priority LOW 36CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 4 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

FreeRDP is a free remote desktop protocol library and clients. All FreeRDP based clients when using the `/video` command line switch might read uninitialized data, decode it as audio/video and display the result. FreeRDP based server implementations are not affected. This issue has been patched in version 2.8.1. If you cannot upgrade do not use the `/video` switch.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01383 72nd percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 4 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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
FreeRDPFreeRDPup to 2.8.0—No fix listedCNA
  • FreeRDP VendorFreeRDP Affected up to 2.8.0 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*before 2.8.1VulnerableFreeRDP
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*35VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*36VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*37VulnerableFedoraproject
  • cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:* Versions before 2.8.1 Vulnerable ·FreeRDP
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* Versions 37 Vulnerable ·Fedoraproject

Remediation

Red Hat 2 advisories

  • RHSA-2023:2851 Released 2023-05-16 · Red Hat rating Moderate
    freerdp security update
    • Red Hat Enterprise Linux AppStream (v. 8) freerdp-2:2.2.0-10.el8, freerdp-libs-2:2.2.0-10.el8, libwinpr-2:2.2.0-10.el8 +1
    • Red Hat Enterprise Linux CRB (v. 8) freerdp-devel-2:2.2.0-10.el8
  • RHSA-2023:2326 Released 2023-05-09 · Red Hat rating Moderate
    freerdp security update
    • Red Hat Enterprise Linux AppStream (v. 9) freerdp-2:2.4.1-5.el9, freerdp-libs-2:2.4.1-5.el9, libwinpr-2:2.4.1-5.el9
    • Red Hat Enterprise Linux CRB (v. 9) freerdp-devel-2:2.4.1-5.el9, libwinpr-devel-2:2.4.1-5.el9

Fixed in the same release

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

  • Advisory ·

    FreeRDP — FEDORA-2022-e733724edb

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2022-18658 RDP client: Read of uninitialized memory with parallel port redirectionPriority LOW 35
    Show all 2 records → Advisory →
  • Advisory ·

    FreeRDP — FEDORA-2022-d6310a1308

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2022-18658 RDP client: Read of uninitialized memory with parallel port redirectionPriority LOW 35
    Show all 2 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. 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 AppStream (v. 8)Fixed RHSA-2023:2851
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:2326
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2023:2851
Red Hat Enterprise Linux CRB (v. 9)Fixed RHSA-2023:2326

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-39283

References

Advisory 6

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