FreeRDP before 3.29.0 (affected versions <= 3.28.0) contains a divide-by-zero vulnerability in the rdpecam camera redirection client. (CVE-2026-67302)
FreeRDP versions up to 3.28.0 contain a divide-by-zero vulnerability in the rdpecam camera redirection client. This occurs when a malicious or compromised RDP server sends a StartStreamsRequest with FrameRateDenominator set to zero, causing the client process to terminate unexpectedly. The vulnerability is fixed in FreeRDP 3.29.0.
AI Analysis
Technical Summary
FreeRDP before version 3.29.0 (specifically versions <= 3.28.0) has a divide-by-zero vulnerability in the rdpecam camera redirection client. The function ecam_dev_process_start_streams_request() parses a server-controlled CAM_MEDIA_TYPE_DESCRIPTION from a StartStreamsRequest PDU but fails to validate the FrameRateDenominator field. If this value is zero, ecam_encoder_context_init() performs an integer division by zero (FrameRateNumerator / FrameRateDenominator), resulting in a SIGFPE signal and termination of the FreeRDP client process. This vulnerability requires camera redirection to be enabled on the client to be exploitable. The issue is resolved in FreeRDP version 3.29.0.
Potential Impact
An attacker controlling or compromising an RDP server can cause a denial of service by sending a specially crafted StartStreamsRequest with FrameRateDenominator set to zero, causing the FreeRDP client process to crash. This results in availability impact (client termination). No confidentiality or integrity impact is indicated.
Mitigation Recommendations
A patch is available in FreeRDP version 3.29.0 that fixes this divide-by-zero vulnerability. Users should upgrade to version 3.29.0 or later to remediate this issue. Since the vulnerability requires camera redirection to be enabled, disabling this feature can also mitigate exposure until the patch is applied.
FreeRDP before 3.29.0 (affected versions <= 3.28.0) contains a divide-by-zero vulnerability in the rdpecam camera redirection client. (CVE-2026-67302)
Description
FreeRDP versions up to 3.28.0 contain a divide-by-zero vulnerability in the rdpecam camera redirection client. This occurs when a malicious or compromised RDP server sends a StartStreamsRequest with FrameRateDenominator set to zero, causing the client process to terminate unexpectedly. The vulnerability is fixed in FreeRDP 3.29.0.
CVSS v3.1
Score 6.5medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FreeRDP before version 3.29.0 (specifically versions <= 3.28.0) has a divide-by-zero vulnerability in the rdpecam camera redirection client. The function ecam_dev_process_start_streams_request() parses a server-controlled CAM_MEDIA_TYPE_DESCRIPTION from a StartStreamsRequest PDU but fails to validate the FrameRateDenominator field. If this value is zero, ecam_encoder_context_init() performs an integer division by zero (FrameRateNumerator / FrameRateDenominator), resulting in a SIGFPE signal and termination of the FreeRDP client process. This vulnerability requires camera redirection to be enabled on the client to be exploitable. The issue is resolved in FreeRDP version 3.29.0.
Potential Impact
An attacker controlling or compromising an RDP server can cause a denial of service by sending a specially crafted StartStreamsRequest with FrameRateDenominator set to zero, causing the FreeRDP client process to crash. This results in availability impact (client termination). No confidentiality or integrity impact is indicated.
Mitigation Recommendations
A patch is available in FreeRDP version 3.29.0 that fixes this divide-by-zero vulnerability. Users should upgrade to version 3.29.0 or later to remediate this issue. Since the vulnerability requires camera redirection to be enabled, disabling this feature can also mitigate exposure until the patch is applied.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-jrm8-x4f5-vff8
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-67302"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a6e6296bf32cb7a344f6a03
Added to database: 08/01/2026, 21:18:14 UTC
Last enriched: 09/10/2026, 14:36:46 UTC
Last updated: 09/15/2026, 10:01:33 UTC
Views: 43
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