VulnSocial

CVE-2026-91949Patch(freerdp / freerdp)

LOWCVSS 9.2 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch freerdp freerdp systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS handshake and enter RDSTLS to bypass pre-authentication transport restrictions.

freerdp CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Exploit / PoC references
Vendor / third-party advisories
Weakness type (CWE)
CWE-693

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • freerdp

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
freerdp
Products
freerdp

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-09-16: 1Patch / Workaround · 2026-09-16: 1Technical Details · 2026-09-16: 109-16
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • VulnTracker@vuln_tracker
    Patch

    Unauthenticated attackers can bypass FreeRDP's protocol policy (CVSS 9.3). CVE-2026-91949 lets them force a negotiation failure, complete a TLS handshake, and establish RDSTLS connections the server explicitly disabled. Fixed in FreeRDP 3.31.0. Update now. Details: http://vulntracker.io/cves/CVE-2026-91949 #FreeRDP #CVE #RDP #InfoSec #CyberSecurity

    Post summary

    The text discloses CVE-2026-91949 in FreeRDP, describing how unauthenticated attackers can bypass protocol policy (CVSS 9.3), and notes that the issue is fixed in FreeRDP 3.31.0, urging users to update.

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    762 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appfreerdpfreerdp---

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