CVE-2020-7861: AnySupport directory traversing vulnerability

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-04-22 · updated 2026-06-17
Weakness: CWE-23

Description

AnySupport (Remote support solution) before 2019.3.21.0 allows directory traversing because of swprintf function to copy file from a management PC to a client PC. This can be lead to arbitrary file execution.

Affected products

Anysupport: before 2019.3.21.0 — fixed in 2019.3.21.0

How to fix

Upgrade to a fixed version: Anysupport 2019.3.21.0. Check the vendor advisory for mitigations.

References

https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36016
https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36016

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