SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-8270

An unprivileged Windows user on the VDA or an SMB user can perform arbitrary command execution as SYSTEM in CVAD versions before 2009, 1912 LTSR CU1 hotfixes CTX285871 and CTX285872, 7.15 LTSR CU6 hotfix CTX285341 and CTX285342

HIGH 8.8EPSS 3.48%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (3.48%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An unprivileged Windows user on the VDA or an SMB user can perform arbitrary command execution as SYSTEM in CVAD versions before 2009, 1912 LTSR CU1 hotfixes CTX285871 and CTX285872, 7.15 LTSR CU6 hotfix CTX285341 and CTX285342

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
3.48% probability · 89th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-78
Affected
citrix/virtual apps and desktops
Source
support@hackerone.com
EPSS trend
0%3%5%26 October 2026: 3.48%26 October 202626 October 2026

EPSS 3.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.