Medium severity6.6NVD Advisory· Published Sep 15, 2026· Updated Sep 24, 2026
CVE-2026-91958
CVE-2026-91958
Description
FreeRDP versions before 3.31.0 fail to validate MonitorIds array values when parsing RDP connection files, allowing unbounded array indexing in xf_detect_monitors. Attackers can craft a malicious RDP file with an out-of-range selectedmonitors value to trigger out-of-bounds heap read and write operations when opened in xfreerdp.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2Patches
Vulnerability mechanics
References
2- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-23pf-q83q-x45rnvdExploitMitigationVendor Advisory
- www.vulncheck.com/advisories/freerdp-3.11.0-through-3.30.0-heap-buffer-overflow-via-monitor-indexnvdThird Party Advisory
News mentions
1- FreeRDP: 20 Vulnerabilities Disclosed, Including Critical RDSTLS BypassVypr Intelligence · Sep 15, 2026