Acronis Cyber Protect 17/Cyber Protect Cloud Agent default permission

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Acronis Cyber Protect 17 and Cyber Protect Cloud Agent. The impacted element is an unknown function. The manipulation leads to default permission. This vulnerability is uniquely identified as CVE-2026-28727. Local access is required to approach this attack. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Acronis Cyber Protect 17 and Cyber Protect Cloud Agent (the affected version is unknown) and classified as critical. This issue affects an unknown code. The manipulation with an unknown input leads to a default permission vulnerability. Using CWE to declare the problem leads to CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Local privilege escalation due to insecure Unix socket permissions. The following products are affected: Acronis Cyber Protect 17 (macOS) before build 41186, Acronis Cyber Protect Cloud Agent (macOS) before build 41124.

It is possible to read the advisory at security-advisory.acronis.com. The identification of this vulnerability is CVE-2026-28727 since 03/03/2026. The exploitation is known to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-0620). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Acronis Cyber Protect

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (Acronis): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Default permission
CWE: CWE-276 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/03/2026 CVE reserved
03/06/2026 +3 days Advisory disclosed
03/06/2026 +0 days VulDB entry created
03/10/2026 +4 days VulDB entry last update

Sourcesinfo

Advisory: security-advisory.acronis.com
Status: Confirmed

CVE: CVE-2026-28727 (🔒)
GCVE (CVE): GCVE-0-2026-28727
GCVE (VulDB): GCVE-100-349367
CERT Bund: WID-SEC-2026-0620 - Acronis Cyber Protect und Cyber Protect Cloud Agent: Mehrere Schwachstellen

Entryinfo

Created: 03/06/2026 07:40
Updated: 03/10/2026 17:14
Changes: 03/06/2026 07:40 (62), 03/08/2026 22:29 (7), 03/10/2026 17:14 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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