MEDIUMCVSS v3.1 6.5Vulnerability
CVE-2026-121404
FreeRDP before 3.32.2 contains a denial of service vulnerability in the shadow server that allows authenticated RDP clients to spin server threads by sending zero-length drdynvc DATA PDUs. Attackers can send empty DATA messages on opened audin or rdpgfx channels, so that FreeRDP_WTSVirtualChannelRead never consumes them, consuming full CPU cores until disconnect.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-11-03T17:20:13.885968+00:00
- Cvss severity
- MEDIUM
- Cvss score
- 6.5
- Retrieved at
- 2026-11-03T17:21:18+00:00
- Score
- 6.5
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-121404
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- First seen by Signal
- 2026-11-03T17:21:18+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Published at
- 2026-11-03T15:17:28.870
- Last modified
- 2026-11-03T16:00:22.277
Related Entities (2)
AFFECTS_PRODUCT (1)
HAS_WEAKNESS (1)
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