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Acronis DeviceLock DLP CVE-2026-50033

| EUVDEUVD-2026-34172 HIGH
Uncontrolled Search Path Element (CWE-427)
2026-06-03 security@acronis.com GHSA-769h-95cg-2m99
7.3
CVSS 3.0 · Vendor: acronis
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain low-privileged local Windows account
  2. Delivery
    Identify DLL searched by DeviceLock process
  3. Exploit
    Plant malicious DLL in writable search-order directory
  4. Execution
    Trigger user action launching DeviceLock component
  5. Persist
    DeviceLock loads planted DLL with elevated privileges
  6. Impact
    Disable DLP enforcement and exfiltrate data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A08:2025 - Software or Data Integrity Failures
ASVS 5.0
V13 - Configuration Search path element control
Exploitation Conditions

Attacker must already have local, interactive, low-privileged code execution on the Windows host running an unpatched DeviceLock DLP build (any build before 9.0.15051.93227); must be able to write a DLL file to a directory that appears earlier in the DeviceLock process DLL search order than the legitimate library location (a writable application subdirectory or an unsecured %PATH% entry); and a user action is required (UI:R) to launch or trigger the vulnerable DeviceLock component so it loads the planted DLL. Exploitation is constrained to local attack (AV:L) with no remote/network path, does not work against patched build 9.0.15051.93227 or later, and is not possible if the search-order directories are not writable by the attacker's account.

Impact

The CVSS 3.0 score of 7.3 (AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H) describes a local, low-complexity attack requiring an authenticated low-privileged user plus user interaction, yielding full confidentiality, integrity, and availability impact within the same scope - consistent with classic DLL hijacking against a privileged Windows service or helper. No EPSS score, KEV listing, SSVC decision, or POC indicator was supplied in the input, so probability of exploitation cannot be quantitatively benchmarked; the absence of KEV and POC data suggests this is not currently observed in mass exploitation, but DLP/endpoint-security agents are attractive post-compromise targets for adversaries who want to disable controls or pivot to SYSTEM. The UI:R requirement (a user must perform some action, e.g. launching an application that triggers the vulnerable load) is the main natural brake on exploitation; insiders and malware already running as a standard user can satisfy this trivially.

Exploit ScenarioDerived

A standard-user attacker - for example, a malicious insider or commodity malware running without admin rights - places a malicious DLL with a name the DeviceLock process is known to load by unqualified name into a directory that precedes the legitimate location in the Windows search order. The user (or a scheduled/triggered action) then launches or interacts with the affected DeviceLock component, which loads the planted DLL and runs the attacker's code under the elevated DeviceLock context, giving the attacker the ability to disable DLP enforcement and exfiltrate data.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Jun 03, 2026

Local privilege escalation in Acronis DeviceLock DLP for Windows (builds prior to 9.0.15051.93227) enables a low-privileged local user to execute code in a higher-privileged context by abusing insecure DLL search behavior. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV, but the combination of low complexity and a security product as the target makes it a credible insider/post-compromise risk. Exploitation requires local access plus user interaction, which limits drive-by mass abuse.

RemediationAI

Vendor-released patch: Acronis DeviceLock DLP for Windows build 9.0.15051.93227 or later - upgrade per the Acronis advisory at https://security-advisory.acronis.com/advisories/SEC-3085 as the primary fix. Until the upgrade is deployed, restrict write permissions on any directories that appear in the DeviceLock process search path (application install directory, any directory writable by non-administrators that is on %PATH%) so that standard users cannot drop a planted DLL, and audit %PATH% for world-writable entries that should be removed; the trade-off is that overly aggressive ACL changes on shared application directories can break legitimate software updates. Application allowlisting (WDAC or AppLocker) configured to block unsigned or non-Acronis-signed DLLs from loading into DeviceLock processes provides defense-in-depth at the cost of additional policy maintenance, and monitoring Sysmon Event ID 7 (ImageLoad) for unexpected module paths inside DeviceLock processes will surface in-progress exploitation attempts.

Affected VersionsENISA

Acronis DeviceLock DLP unspecified <9.0.15051.93227

Affected Packages

euvd acronis_devicelock_dlp_unspecified fix: 9.0.15051.93227

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

DeviceLock DLP is an endpoint data loss prevention agent that runs with elevated privileges on Windows to enforce device control and content inspection policies. The root cause is CWE-427 (Uncontrolled Search Path Element), commonly known as DLL hijacking or DLL planting: when a process loads a library by name rather than fully qualified path, Windows walks an ordered search path (application directory, system directories, current directory, %PATH%) and will load the first match it finds. If any writable directory appears earlier in the search order than the legitimate DLL location, an attacker-supplied DLL with the expected name is loaded and executed inside the high-privileged DeviceLock process. The single NVD-referenced CPE coverage is Acronis DeviceLock DLP on Windows; no CPE 2.3 string was provided in the supplied data.

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Severity by source

Vendor (acronis) PRIMARY 7.3 HIGH
AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Primary rating from Vendor (acronis) · only source for this CVE.

CVSS VectorVendor: acronis

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Patch available
Jun 03, 2026 - 22:01 EUVD
CVE Published
Jun 03, 2026 - 20:16 nvd
HIGH 7.3

DescriptionCVE.org

Local privilege escalation due to DLL hijacking vulnerability. The following products are affected: Acronis DeviceLock DLP (Windows) before build 9.0.15051.93227.

Executive ViewAI

Why It Matters

Acronis DeviceLock, a widely deployed data loss prevention (DLP) tool, contains a local privilege escalation vulnerability that could allow attackers with existing system access to bypass DLP controls and gain elevated privileges. With no patch currently available, organizations relying on DeviceLock for sensitive data protection face elevated insider threat and post-compromise risk. Immediate inventory and containment measures are required.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: (1) Restrict local administrative access and interactive session access on systems running DeviceLock; (2) Monitor %ProgramFiles%\Acronis\DeviceLock and system directories for unauthorized or suspicious DLL files indicative of DLL hijacking attempts; (3) Implement privileged access management (PAM) with alerting on privilege escalation attempts; (4) Limit system access to essential personnel only; (5) Isolate DeviceLock-running systems from general employee networks where feasible; (6) Subscribe to Acronis security advisories for patch availability notification.

Threat Intelligence Overview

EPSS Score
0.0%
Top 97% exploitable
Social Media
1
Sightings
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact
High
Technical Impact
Total

Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

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