CVE-2026-121959FreeRDP before 3.32.2 Infinite Loop via Truncated WebSocket Frame

FreeRDP before 3.32.2 contains an infinite loop vulnerability in websocket_context_read that fails to handle a zero BIO result with payload outstanding. A malicious RD Gateway can send a truncated WebSocket frame followed by a TLS close_notify, causing a client thread to spin and consume CPU until killed.

7.1 HIGHEPSS 0.31%Not in KEVNVD: Analyzed

Last updated: 2026-11-05 19:22 UTC

OverviewCVSS details

7.1HIGHCVSS 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

0.31%chance of exploitation in 30 days

Higher than 24.33% of CVEs

CVSS 4.0 · VulnCheck (CNA)

7.1High

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

Attack vector: Network
Attack complexity: Low
Attack requirements: None
Privileges required: None
User interaction: Passive
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)

6.5Medium

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

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: Required
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
7.1	HIGH	4.0VulnCheck (CNA)	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5	MEDIUM	3.1VulnCheck (CNA)	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Details

CVE ID: CVE-2026-121959
Status: Analyzed
Assigner (CNA): VulnCheck
Published: Nov 4, 2026
Last modified: 2026-11-05 19:22 UTC
Weaknesses: CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')

Sources

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