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 the client processes a malformed StartStreamsRequest PDU with a FrameRateDenominator value of zero, leading to a crash of the FreeRDP client process. The vulnerability requires camera redirection to be enabled on the client. The issue is fixed in FreeRDP version 3.29.0.
AI Analysis
Technical Summary
FreeRDP before version 3.29.0 (specifically versions <= 3.28.0) has a vulnerability in the rdpecam camera redirection client where the function ecam_dev_process_start_streams_request() parses a server-controlled CAM_MEDIA_TYPE_DESCRIPTION from a StartStreamsRequest PDU. It validates only the Format and Flags fields but does not validate the FrameRateDenominator. If a malicious or compromised RDP server sends a StartStreamsRequest with FrameRateDenominator set to zero, the function ecam_encoder_context_init() performs an integer division by zero (FrameRateNumerator / FrameRateDenominator), causing a SIGFPE signal and terminating the FreeRDP client process. This vulnerability requires that camera redirection be enabled on the client to be exploitable. The issue is resolved in FreeRDP 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. This triggers a divide-by-zero error, crashing the FreeRDP client process. There is no impact on confidentiality or integrity, only availability (client crash).
Mitigation Recommendations
This vulnerability is fixed in FreeRDP version 3.29.0. Users should upgrade to version 3.29.0 or later to remediate this issue. Until then, disabling camera redirection on the client can prevent exploitation since the vulnerable code is reachable only if camera redirection is enabled.
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 the client processes a malformed StartStreamsRequest PDU with a FrameRateDenominator value of zero, leading to a crash of the FreeRDP client process. The vulnerability requires camera redirection to be enabled on the client. The issue is fixed in FreeRDP version 3.29.0.
CVSS v3.1
Score 4.3medium
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 vulnerability in the rdpecam camera redirection client where the function ecam_dev_process_start_streams_request() parses a server-controlled CAM_MEDIA_TYPE_DESCRIPTION from a StartStreamsRequest PDU. It validates only the Format and Flags fields but does not validate the FrameRateDenominator. If a malicious or compromised RDP server sends a StartStreamsRequest with FrameRateDenominator set to zero, the function ecam_encoder_context_init() performs an integer division by zero (FrameRateNumerator / FrameRateDenominator), causing a SIGFPE signal and terminating the FreeRDP client process. This vulnerability requires that camera redirection be enabled on the client to be exploitable. The issue is resolved in FreeRDP 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. This triggers a divide-by-zero error, crashing the FreeRDP client process. There is no impact on confidentiality or integrity, only availability (client crash).
Mitigation Recommendations
This vulnerability is fixed in FreeRDP version 3.29.0. Users should upgrade to version 3.29.0 or later to remediate this issue. Until then, disabling camera redirection on the client can prevent exploitation since the vulnerable code is reachable only if camera redirection is enabled.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-jrm8-x4f5-vff8
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-67302"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a6e6296bf32cb7a344f6a03
Added to database: 08/01/2026, 21:18:14 UTC
Last enriched: 08/01/2026, 21:23:22 UTC
Last updated: 08/01/2026, 21:57:58 UTC
Views: 2
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