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CVE-2020-10138

HIGH
7.8
CVSS Score
Published: October 21, 2020 at 01:40 PM UTC
Updated: June 17, 2026 at 02:47 AM UTC
2 products affected across 1 vendorCyber ProtectCyber Backup

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Severity
HIGH7.8
Exploit prediction
EPSS 0.5%

Description

Acronis Cyber Backup 12.5 and Cyber Protect 15 include an OpenSSL component that specifies an OPENSSLDIR variable as a subdirectory within C:\jenkins_agent\. Acronis Cyber Backup and Cyber Protect contain a privileged service that uses this OpenSSL component. Because unprivileged Windows users can create subdirectories off of the system root, a user can create the appropriate path to a specially-crafted openssl.cnf file to achieve arbitrary code execution with SYSTEM privileges.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Cyber Backup· Acronis
95%
v < 12.512.5 ≤ v < 1636312.5
Affected range stops below 12.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 16363, so it looks safe — our inference, not a vendor statement
Cyber Protect· Acronis
95%
v < 1515 ≤ v < 2460015
Affected range stops below 15, so it looks safe — our inference, not a vendor statement
Affected range stops below 24600, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCThird Party AdvisoryUS Government Resource
Source: [email protected]
https://www.kb.cert.org/vuls/id/114757

CVSS

7.8HIGHcertcc
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-284CWE-665

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