CVE-2020-9450

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-05-25 · updated 2026-06-17
Weakness: CWE-276

Description

An issue was discovered in Acronis True Image 2020 24.5.22510. anti_ransomware_service.exe exposes a REST API that can be used by everyone, even unprivileged users. This API is used to communicate from the GUI to anti_ransomware_service.exe. This can be exploited to add an arbitrary malicious executable to the whitelist, or even exclude an entire drive from being monitored by anti_ransomware_service.exe.

Affected products

Acronis True Image 2020: 24.5.22510

References

https://danishcyberdefence.dk/blog
https://madsjoensen.dk/cve-2020-9450/
https://www.acronis.com
https://danishcyberdefence.dk/blog
https://madsjoensen.dk/cve-2020-9450/
https://www.acronis.com

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