CVE-2026-109952: FreeRDP 3.0.0 before 3.32.0 Security Protocol Downgrade via Negotiation Response
Fixed in 3.32.0 · Affected: FreeRDP before 3.32.0 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 25% of scored CVEs
DescriptionCVE.org
The FreeRDP client 3.0.0 before 3.32.0 does not check a server-selected PROTOCOL_RDSTLS or PROTOCOL_HYBRID_EX against its enabled protocol set in nego_process_negotiation_response(), allowing a security protocol downgrade. A malicious server or man-in-the-middle can select RDSTLS to override /sec:nla pinning, complete authentication with an all-zero cookie, and receive the user's cleartext password in the Client Info PDU.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- FreeRDP · FreeRDPfrom 3.0.0 before 3.32.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- FreeRDP
- Published
- October 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-109952 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.