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Dell Encryption CVE-2025-46637

HIGH
Improper Link Resolution Before File Access (CWE-59)
2025-12-09 security_alert@emc.com
7.3
CVSS 3.1 · Vendor: emc
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Attack ChainAIDerived

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

  1. Access
    Authenticate as local user
  2. Delivery
    Plant malicious symbolic link at monitored path
  3. Exploit
    Trigger privileged Encryption operation (user interaction)
  4. Execution
    Service follows link to attacker-controlled target
  5. Impact
    Gain elevated privileges

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Symlink resolution safety
Exploitation Conditions

Exploitation requires an already-authenticated local user on a system running Dell Encryption at a version prior to 11.12.1, plus user interaction (UI:R) to trigger the privileged file operation that follows the attacker-planted link. Limiting factors: there is no remote vector (AV:L), the attacker needs valid local credentials (PR:L), and the UI:R requirement means a privileged Encryption operation must be invoked rather than firing autonomously. These constraints confine the threat to insiders or to post-compromise escalation on an endpoint where Dell Encryption is deployed.

Impact

This is a locally-exploitable privilege-escalation flaw that should be triaged as a moderate, not urgent, priority. The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:R) confirms the attacker must already have local, authenticated access (PR:L) and requires user interaction (UI:R), which meaningfully constrains exploitability despite the high C:H/I:H/A:H impact that produces the 7.3 base score. All opportunistic-exploitation signals are low and mutually consistent: EPSS is 0.10% (1st percentile), the CVE is NOT in CISA KEV, and no public POC is referenced - so there is no public exploit identified at time of analysis. No SSVC decision data was provided. The one notable conflict is in the metadata rather than the risk signals: the CVE is tagged 'Information Disclosure' but the Dell description and CWE-59 ('Link Following') describe an Elevation of Privilege primitive - treat this as a local EoP, not a disclosure bug. Net: a legitimate patch-management item for environments running Dell Encryption, but it is a high-CVSS-local flaw with low real-world exploitation pressure, not an emergency.

Exploit ScenarioDerived

A local authenticated user on a workstation running Dell Encryption plants a malicious symbolic link (or junction) at a path the privileged Encryption service accesses, then triggers the required user interaction so the service follows the link and operates on an attacker-chosen file with elevated privileges. Because the vector is local and requires an interaction step (AV:L, UI:R), this is a hands-on-keyboard local escalation rather than a remote mass-exploitation scenario. No public proof-of-concept is referenced at time of analysis.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 08, 2026

Privilege escalation in Dell Encryption versions prior to 11.12.1 allows a local user to exploit an improper link resolution ('link following') flaw so that an elevated Dell Encryption component performs a file operation on an attacker-controlled link target. Exploitation requires valid local credentials (CVSS PR:L) and user interaction (UI:R) to invoke the privileged operation, and the local-only vector (AV:L) confines the threat to insiders or to post-compromise escalation on endpoints where the agent is installed. No public exploit code has been identified at time of analysis, the vulnerability is not on CISA KEV, and EPSS is very low (0.10%, 1st percentile), so this should be triaged as a moderate, not urgent, priority.

RemediationAI

Vendor-released patch: Dell Encryption 11.12.1 - upgrade all agents to version 11.12.1 or later following Dell Security Advisory DSA-2025-442 (https://www.dell.com/support/kbdoc/en-us/000394657/dsa-2025-442), and verify the resulting build after deployment. Until patching is complete, compensating controls should target the local, interactive-user precondition: restrict interactive logon and local credential use on hosts running Dell Encryption so that standard users cannot plant the link, and monitor or block the creation of symbolic links, junctions, and hard links in directories touched by Dell Encryption services (including temp and working directories) using Windows file-system auditing, AppLocker/WDAC rules, or an EDR behavioral rule - noting the trade-off that aggressive link-creation blocking can break legitimate installers, backup, and developer tooling. Because UI:R means a privileged Encryption operation must be invoked for the flaw to trigger, reducing the number of user-driven privileged operations and applying least privilege to local accounts lowers exposure, at the cost of some administrative convenience. There is no vendor workaround that fully removes the risk short of upgrading, and no vendor-released patch alternative for versions below 11.12.1.

Affects your stack

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Technical ContextAI · show details

The root cause is CWE-59, Improper Link Resolution Before File Access, a class of flaw in which privileged code resolves a filesystem path that a lower-privileged user can redirect - typically via a symbolic link, Windows junction, or hard link - so that the elevated operation ultimately reads, writes, or deletes a file of the attacker's choosing. Dell Encryption (the agent formerly branded Dell Data Protection | Encryption) runs privileged background services for full-disk and file-level encryption, key management, and policy enforcement on managed Windows endpoints, and those services operate on files and directories that can be reachable by a standard local user. When such a service follows an attacker-planted link during a privileged file operation, the resulting write or access executes with the service's (SYSTEM-level) rights, yielding elevation of privilege. The CPE string cpe:2.3:a:dell:encryption:*:*:*:*:*:*:*:* with a wildcard version indicates the advisory covers the entire Dell Encryption product line prior to the fixed release rather than a single edition; the vendor-tracked flaw is documented as Dell Security Advisory DSA-2025-442. The CVSS 3.1 vector AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H describes a low-complexity local attack with high confidentiality, integrity, and availability impact to the component, and an unchanged scope.

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Severity by source

Vendor (emc) PRIMARY 7.3 HIGH
AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
vuln.today AI 7.3 HIGH

Local vector and existing low-privilege access are required (AV:L/PR:L), a privileged operation must be triggered (UI:R), and successful link following yields full control of the targeted files (C/I/A:H).

3.1 AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
4.0 AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (emc).

CVSS VectorVendor: emc

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

DescriptionCVE.org

Dell Encryption, versions prior to 11.12.1, contain an Improper Link Resolution Before File Access ('Link Following') vulnerability. A local malicious user could potentially exploit this vulnerability, leading to Elevation of privileges.

Executive ViewAI

Why It Matters

Dell Encryption versions prior to 11.12.1 contain a local privilege-escalation flaw that could let an authenticated user with valid local credentials and user interaction cause an elevated component to follow an attacker-controlled link, potentially compromising endpoint data protection. The issue is confined to local endpoints where the Dell Encryption agent is installed, so it is primarily an insider or post-compromise escalation risk rather than a broad remote threat. Although no public exploit code has been identified and EPSS is very low, leadership should ensure affected endpoints are tracked and mitigated because Dell Encryption protects sensitive data on those systems.

Business Impact: Medium
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: enforce least privilege and remove unnecessary local admin rights; restrict valid local credentials on Dell Encryption endpoints; enable EDR/application control to detect improper link resolution or suspicious file operations; monitor for anomalous elevation events; and isolate or rebuild affected endpoints if exploitation is suspected.

Threat Intelligence Overview

EPSS Score
0.1%
Top 99% exploitable
Prevalence
Medium
enterprise endpoint-encryption agent, common but vendor-specific deployment
Data Quality
3 sources
Confidence: Low

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 0.1%
Patch available No
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· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
Medium

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

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:a:dell:encryption:*:*:*:*:*:*:*:*

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