CVE-2026-121961FreeRDP before 3.32.2 Use-After-Free via DRDYNVC Tracker Race

FreeRDP before 3.32.2 contains a use-after-free vulnerability in the freerdp-proxy DRDYNVC tracker when intercepting the drdynvc channel. A malicious target server can repeatedly send CREATE_REQUEST_PDU for an active channel id, racing front DATA handling to free a borrowed context and crash the proxy process.

8.2 HIGHEPSS 0.30%Not in KEVNVD: Analyzed

Last updated: 2026-11-05 19:20 UTC

OverviewCVSS details

8.2HIGHCVSS 4.0

Score source: VulnCheck (CNA)
NVD status: Analyzed
Published: Nov 4, 2026
Assigner: VulnCheck

Affected

FreeRDP (FreeRDP)

Versions: before 3.32.2
Fixed in: 3.32.2

Exploitation

Public exploit: Yes · 1 reference
CISA KEV: Not listed
KEV due date: —
SSVC: Exploitation poc · Automatable no · Impact partial

EPSS · FIRST, scored Nov 7

0.30%chance of exploitation in 30 days

Higher than 23.56% of CVEs

CVSS 4.0 · VulnCheck (CNA)

8.2High

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Attack vector: Network
Attack complexity: High
Attack requirements: Present
Privileges required: None
User interaction: None
Confidentiality impact: None
Integrity impact: None
Availability impact: High
Confidentiality (other systems): None
Integrity (other systems): None
Availability (other systems): None

CVSS 3.1 · VulnCheck (CNA)

5.9Medium

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack vector: Network
Attack complexity: High
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: None
Availability impact: High

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
8.2	HIGH	4.0VulnCheck (CNA)	CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.9	MEDIUM	3.1VulnCheck (CNA)	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CVE ID: CVE-2026-121961
Status: Analyzed
Assigner (CNA): VulnCheck
Published: Nov 4, 2026
Last modified: 2026-11-05 19:20 UTC
Weaknesses: CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 10:44 UTC.