CVE-2026-91963: FreeRDP 2.0.0 through 3.30.0 Uninitialized Heap Memory Disclosure via urbdrc
Fixed in 3.31.0 · Affected: FreeRDP before 3.31.0 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 48% of scored CVEs
DescriptionCVE.org
FreeRDP versions before 3.31.0 contain an uninitialized heap memory disclosure vulnerability in the urbdrc USB redirection channel. A malicious RDP server can induce failing USB transfers to read uninitialized heap memory from the client, defeating ASLR and enabling remote code execution when chained with memory corruption vulnerabilities.
Affected products2
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- FreeRDP · FreeRDPfrom 2.0.0 before 3.0.0; from 3.0.0 before 3.31.0
- FreeRDP · FreeRDPbefore 3.31.0
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
- September 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-91963 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.