CVE-2018-20753

CriticalCVSS 9.8/10Known exploited (CISA KEV)Last modified Aug 13, 2026

Description

Kaseya VSA RMM before R9.3 9.3.0.35, R9.4 before 9.4.0.36, and R9.5 before 9.5.0.5 allows unprivileged remote attackers to execute PowerShell payloads on all managed devices. In January 2018, attackers actively exploited this vulnerability in the wild.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://blog.huntresslabs.com/deep-dive-kaseya-vsa-mining-payload-c0ac839a0e88Exploit, Third Party Advisory
https://helpdesk.kaseya.com/hc/en-gb/articles/360000333152Vendor Advisory
https://blog.huntresslabs.com/deep-dive-kaseya-vsa-mining-payload-c0ac839a0e88Exploit, Third Party Advisory
https://helpdesk.kaseya.com/hc/en-gb/articles/360000333152Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-20753US Government Resource

Timeline

Published: Feb 5, 2019
Last modified: Aug 13, 2026
Added to CISA KEV: Apr 13, 2022
NVD status: Analyzed

Related CVEs from 2018

CVE-2018-207556.1MODX Revolution through v2.7.0-pl allows XSS via the User Photo field.CVE-2018-207566.1MODX Revolution through v2.7.0-pl allows XSS via a document resource (such as pagetitle), which is mishandled during an Update action, a Qui CVE-2018-207576.1MODX Revolution through v2.7.0-pl allows XSS via an extended user field such as Container name or Attribute name.CVE-2018-207585.4MODX Revolution through v2.7.0-pl allows XSS via User Settings such as Description.CVE-2018-207607.8In GPAC 0.7.1 and earlier, gf_text_get_utf8_line in media_tools/text_import.c in libgpac_static.a allows an out-of-bounds write because a ce CVE-2018-207617.8GPAC version 0.7.1 and earlier has a Buffer Overflow vulnerability in the gf_sm_load_init function in scene_manager.c in libgpac_static.a.CVE-2018-207627.8GPAC version 0.7.1 and earlier has a buffer overflow vulnerability in the cat_multiple_files function in applications/mp4box/fileimport.c wh CVE-2018-207637.8In GPAC 0.7.1 and earlier, gf_text_get_utf8_line in media_tools/text_import.c in libgpac_static.a allows an out-of-bounds write because of m CVE-2018-207649.8A buffer overflow exists in HelpSystems tcpcrypt on Linux, used for BoKS encrypted telnet through BoKS version 6.7.1. Since tcpcrypt is setu CVE-2018-207678.8An issue was discovered on Xerox WorkCentre 3655, 3655i, 58XX, 58XXi, 59XX, 59XXi, 6655, 6655i, 72XX, 72XXi, 78XX, 78XXi, 7970, 7970i, EC783 CVE-2018-207689.8An issue was discovered on Xerox WorkCentre 3655, 3655i, 58XX, 58XXi, 59XX, 59XXi, 6655, 6655i, 72XX, 72XXi, 78XX, 78XXi, 7970, 7970i, EC783 CVE-2018-207697.5An issue was discovered on Xerox WorkCentre 3655, 3655i, 58XX, 58XXi, 59XX, 59XXi, 6655, 6655i, 72XX, 72XXi, 78XX, 78XXi, 7970, 7970i, EC783