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Vulnerabilities

Vulnerability · CVE-2026-121957

FreeRDP before 3.32.2 Use-After-Free via RDPGFX ResetGraphics Race

Published Nov 4, 2026 · catalog updated Nov 5, 2026 · FreeRDP FreeRDP

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-121957. EPSS is 0.24%. Act only if a listed version of FreeRDP FreeRDP is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.24%
Remediation
Advisory link
Affected products
Debian:12 freerdp2 · Debian:13 freerdp3 · Debian:14 freerdp3 · vendor FreeRDP FreeRDP

FreeRDP before 3.32.2 contains a use-after-free vulnerability that allows malicious RDP servers to corrupt client memory by racing the RDPGFX ResetGraphics handler against the planar bitmap decoder. Attackers can send ResetGraphics while concurrently sending compressed bitmaps of 32 bpp or more to trigger heap use-after-free or out-of-bounds read/write on shared planar buffers.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Debian:12 freerdp22.10.0+dfsg1-1, 2.10.0+dfsg1-1.1, 2.11.2+dfsg1-1
  • Debian:13 freerdp33.15.0+dfsg-2.1, 3.15.0+dfsg-2.1+deb13u1, 3.15.0+dfsg-2.1+deb13u2
  • Debian:14 freerdp30 → 3.32.2+dfsg-1
  • vendor FreeRDP FreeRDPversion unspecified

How to fix CVE-2026-121957

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-121957. EPSS is 0.24%. Act only if a listed version of FreeRDP FreeRDP is installed.

Which versions are affected?

Compare what you have installed with 2.10.0+dfsg1-1, 2.10.0+dfsg1-1.1, 2.11.2+dfsg1-1, 3.15.0+dfsg-2.1, 3.15.0+dfsg-2.1+deb13u1, 3.15.0+dfsg-2.1+deb13u2, 0 → 3.32.2+dfsg-1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-362: Race Condition. EPSS 0.24%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Debian security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 4, 2026 · OpenSSF OSV / OSV Scanner

    Detected

  2. Nov 5, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    freerdp3 fixed in 3.32.2+dfsg-1

  3. Nov 5, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    freerdp3 fixed in 3.32.2+dfsg-1

  4. Nov 5, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    The description or metadata changed.

Sources

  • CVE.orgVulnerability recordCVE-2026-121957

    FreeRDP before 3.32.2 contains a use-after-free vulnerability that allows malicious RDP servers to corrupt client memory by racing the RDPGFX ResetGraphics handler against the planar bitmap decoder. Attackers can send ResetGraphics while concurrently sending compressed bitmaps of

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-121957

    30-day exploitation probability 0.24%

    first.org
  • OpenSSF OSV / OSV ScannerPackage advisoryDEBIAN-CVE-2026-121957
    osv.dev

References

Freshness

Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 6, 2026
  • CVE.orgNov 5, 2026
  • OpenSSF OSV / OSV ScannerNov 5, 2026