CVE-2020-16863

published 2020-10-16

CVE-2020-16863: A denial of service vulnerability exists in Windows Remote Desktop Service when an attacker connects to the target system using RDP and sends specially crafted…

Priority P3 42 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

A denial of service vulnerability exists in Windows Remote Desktop Service when an attacker connects to the target system using RDP and sends specially crafted requests. An attacker who successfully exploited this vulnerability could cause the Remote Desktop Service on the target system to stop responding.
To exploit this vulnerability, an attacker would need to run a specially crafted application against a server which provides Remote Desktop Service.
The update addresses the vulnerability by correcting how Remote Desktop Service handles connection requests.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
microsoft	windows_7	>= 6.1.0 < publication	publication
microsoft	windows_7_service_pack_1	>= 6.1.0 < publication	publication
microsoft	windows_server_2008	—	—
microsoft	windows_server_2008_r2_service_pack_1	>= 6.0.0 < publication	publication
microsoft	windows_server_2008_r2_service_pack_1	>= 6.1.0 < publication	publication
msrc	windows_7_for_32-bit_systems_service_pack_1	—	—
msrc	windows_7_for_x64-based_systems_service_pack_1	—	—
msrc	windows_server_2008_r2_for_x64-based_systems_service_pack_1	—	—

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v2.0 7.8 HIGH AV:N/AC:L/Au:N/C:N/I:N/A:C

vendor_msrc 7.5 HIGH

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.