CVE-2026-67299General(freerdp / freerdp)

LOWCVSS 8.7 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

FreeRDP before 3.29.0 contains a client-side heap use-after-free in the async update message proxy for WINDOW_ICON_ORDER when AsyncUpdate is enabled (e.g. xfreerdp /async-update). In update_message_WindowIcon() a shallow CopyMemory() overwrites a freshly allocated lParam->iconInfo with the parser-owned windowIcon->iconInfo pointer. After the parser callback returns, update_recv_window_info_order() frees window_icon.iconInfo, but the queued async message still retains and later dispatches that stale pointer. A malicious or compromised RDP server sending a crafted RAIL Window Alternate Secondary Order with WINDOW_ORDER_ICON can trigger use-after-free, leading to memory corruption and client crash.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-416

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

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • General: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
freerdp

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-01: 1Technical Details · 2026-08-01: 108-01
Signal classification1 categories
General
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • CVE@CVEnew
    General

    CVE-2026-67299 FreeRDP before 3.29.0 contains a client-side heap use-after-free in the async update message proxy for WINDOW_ICON_ORDER when AsyncUpdate is enabled (e.g. xfreerdp /a… https://www.cve.org/CVERecord?id=CVE-2026-67299

    Post summary

    The passage details a client‑side heap use‑after‑free flaw in FreeRDP ≤3.29.0, but offers no PoC, exploit code, patch, or evidence of active exploitation.

    00000689
    57.9K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appfreerdpfreerdp---

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