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Acronis DeviceLock DLP CVE-2026-44682

| EUVDEUVD-2026-34174 HIGH
Uncontrolled Search Path Element (CWE-427)
2026-06-03 security@acronis.com GHSA-3w7q-wcq7-c2vr
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. Recon
    Gain local foothold as standard user
  2. Delivery
    Identify vulnerable DeviceLock binary and hijackable DLL name
  3. Exploit
    Plant malicious DLL in search-order-preferred directory
  4. Install
    Induce user to launch DeviceLock component
  5. C2
    DLL loaded into privileged process
  6. Execute
    Execute payload as SYSTEM
  7. Impact
    Disable DLP controls and persist

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

Exploitation requires the attacker to already have local, interactive code execution on the Windows endpoint as a low-privileged user (PR:L), write access to a directory that appears earlier in the DLL search order than the legitimate system path for the targeted DeviceLock executable, and a victim action that launches or re-launches the vulnerable DeviceLock DLP process (UI:R) - the agent service itself does not auto-trigger the chain without that interaction. Exploitation is limited to Windows endpoints running Acronis DeviceLock DLP at a build below 9.0.15051.93227; fully patched builds, non-Windows endpoints, and hardened deployments where DeviceLock binaries and their working directories are not user-writable are not exploitable. Remote, network-based exploitation is not in scope (AV:L).

Impact

The CVSS 3.0 vector AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H gives a base score of 7.3 (High) and is internally consistent with a local DLL hijacking primitive: local attack vector, low complexity, low privileges already held, and required user interaction (a victim must launch or trigger the vulnerable process). Real-world risk is moderate rather than critical - no public exploit identified at time of analysis, the CVE is not in CISA KEV, and no EPSS or SSVC data was supplied, so there is no signal of widespread or automated exploitation. The dependence on UI:R and pre-existing local foothold means this is most relevant as a post-compromise escalation primitive on managed endpoints (e.g., a malware operator escalating from a standard user to SYSTEM via the DLP agent) rather than a remote mass-exploitation threat. Note that EPSS and KEV are both unavailable in the input, so prioritization should be made on architectural exposure (how many endpoints run DeviceLock DLP) rather than on observed-exploitation telemetry.

Exploit ScenarioDerived

A local standard user (or malware running in that user's session) drops a malicious DLL with a name that a DeviceLock DLP executable loads without a fully qualified path into a directory that wins the Windows DLL search order - for example the application's current working directory or a writable PATH entry. The user is then induced to launch the affected DeviceLock component (UI:R), at which point the planted DLL is mapped into the higher-privileged process and the attacker's code runs with that process's privileges, typically SYSTEM. No public exploit identified at time of analysis, but DLL-hijacking primitives in widely deployed endpoint agents are commonly weaponized by post-exploitation tooling once details become public.

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 an authenticated low-privileged user to execute code in a higher-privileged context by abusing uncontrolled DLL search path loading. Exploitation requires local access plus user interaction, and at the time of analysis no public exploit identified at time of analysis and the issue is not listed in CISA KEV. The vendor (Acronis PSIRT) has published advisory SEC-11249 with a fixed build.

RemediationAI

Vendor-released patch: Acronis DeviceLock DLP (Windows) build 9.0.15051.93227 or later - upgrade all endpoint agents and management components to that build per Acronis advisory SEC-11249 (https://security-advisory.acronis.com/advisories/SEC-11249). Until patching is completed, apply targeted compensating controls: restrict write permissions on the DeviceLock installation directory and any per-user working directories used to launch its executables so standard users cannot drop DLLs there; remove user-writable directories from the system PATH; and use AppLocker or Windows Defender Application Control to allow only Acronis-signed DLLs to load into DeviceLock processes. Each of these has trade-offs - ACL tightening can break in-place updates if the installer is run from a user context, PATH hygiene can disrupt legitimate user tooling, and WDAC/AppLocker rules require an audit phase to avoid blocking legitimate third-party plug-ins. EDR rules that alert on DLL loads from unusual paths into DeviceLock binaries are a useful detection-side backstop.

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 privileged Windows services to enforce device, port, and content policies on workstations. The flaw is a CWE-427 Uncontrolled Search Path Element (DLL hijacking / DLL preloading): one or more DeviceLock executables load a DLL by unqualified name, allowing Windows' default search order to resolve it from a directory the attacker can write to (typically the application's working directory or a user-writable PATH entry) before the legitimate system location. When the targeted process runs at a higher integrity level than the attacker, the malicious DLL is loaded in that privileged context, yielding code execution at the host process's privilege level. CPE data is not provided in the input; affected scope is identified by product/build string from the description.

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  • Exploit and PoC references, threat intelligence from 22 sources

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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 DLP for Windows (builds prior to 9.0.15051.93227) contains a local privilege escalation vulnerability enabling authenticated users to gain elevated system access through DLL search path exploitation. While no public exploit has been identified at this time, the vulnerability presents a significant insider threat to organizations using DeviceLock for endpoint data protection: malicious or compromised employees could bypass DLP controls to exfiltrate sensitive data. The vulnerability requires only local access and user interaction, making it exploitable in realistic office scenarios without requiring sophisticated attack tools.

Business Impact: High
Compensating Controls

Apply vendor patch.

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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