Security readout for executives and security teams
Plain-English summary
Dell PowerProtect Data Manager releases before 20.2.0.0 contain a critical REST API input-validation flaw. A remote attacker who already has high privileges could potentially gain additional privileges and severely affect confidentiality, integrity, and availability. The existing privilege requirement limits initial access risk but does not reduce the potential impact on backup and recovery operations.
Executive priority
Treat this as an urgent remediation for affected backup infrastructure. Prioritize internet-accessible or broadly reachable management interfaces and environments with weak privileged-account controls. The high-privilege prerequisite provides some risk reduction, but compromise could undermine sensitive data and recovery capabilities. No active exploitation is established by the supplied sources.
Technical view
CVE-2026-46738 is a CWE-20 improper input validation vulnerability in the PowerProtect Data Manager REST API. It is remotely reachable, low complexity, requires high privileges, and needs no user interaction. Its CVSS 3.1 score is 9.1 with changed scope and high impact across confidentiality, integrity, and availability.
Likely exposure
Exposure applies to Dell PowerProtect Data Manager versions earlier than 20.2.0.0, especially where privileged users or compromised privileged accounts can remotely reach the REST API. The supplied evidence does not identify specific configurations, ports, deployment models, or whether network controls materially limit access.
Exploitation context
The supplied record is not in CISA KEV and provides no evidence of active exploitation or public exploit availability. Exploitation requires remote access plus high privileges, suggesting greatest concern from compromised administrative accounts, malicious insiders, or attackers who have already established substantial access.
Researcher notes
The public bundle establishes the vulnerable component, version boundary, attacker prerequisites, CWE, and CVSS vector, but provides no root-cause detail, affected API operations, indicators of compromise, or exploit evidence. Testing should remain authorized and non-destructive. Consult Dell's advisory for release-specific installation requirements and any subsequent clarifications.
Mitigation direction
- Upgrade affected systems to version 20.2.0.0 or later according to Dell's advisory.
- Restrict REST API access to trusted administrative networks and authorized identities.
- Review and minimize privileged accounts permitted to access PowerProtect Data Manager remotely.
- Monitor Dell guidance for additional mitigations, prerequisites, or updated release information.
Validation and detection
- Inventory PowerProtect Data Manager instances and record their exact installed versions.
- Confirm every instance runs version 20.2.0.0 or later.
- Verify untrusted networks cannot reach the REST API.
- Review privileged account activity for unexpected API access or permission changes.
- Confirm the update completed successfully using Dell-supported version and health checks.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CWE-20: Exact CWE lookup
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Open ATT&CK lookupCVE-2026-46738 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H2.36dellVulnerability scoring details
Base CVSS 3.1 score
9.1CriticalVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.dell.com/support/kbdoc/en-us/000488847/dsa-2026-287-security-update-dell-powerprotect-data-manager-for-multiple-security-vulnerabilitiesCVE reference, dell · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.