Dell Unity up to 5.5.2 os command injection

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 described as critical has been identified in Dell Unity up to 5.5.2. This affects an unknown part. The manipulation results in os command injection. This vulnerability was named CVE-2026-21418. The attack needs to be approached locally. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Dell Unity up to 5.5.2. Affected is an unknown code block. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Dell Unity, version(s) 5.5.2 and prior, contain(s) an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to arbitrary command execution with root privileges.

The advisory is shared for download at dell.com. This vulnerability is traded as CVE-2026-21418 since 12/24/2025. The exploitability is told to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/11/2026). The MITRE ATT&CK project declares the attack technique as T1202.

Upgrading to version 5.5.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-0264). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Dell EMC Unity

Productinfo

Vendor

Name

Version

License

Website

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 (dell): 🔒

CVSSv2info

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

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
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: 🔒

Upgrade: Unity 5.5.3

Timelineinfo

12/24/2025 CVE reserved
01/30/2026 +37 days Advisory disclosed
01/30/2026 +0 days VulDB entry created
03/11/2026 +40 days VulDB entry last update

Sourcesinfo

Vendor: dell.com

Advisory: dsa-2026-054
Status: Confirmed

CVE: CVE-2026-21418 (🔒)
GCVE (CVE): GCVE-0-2026-21418
GCVE (VulDB): GCVE-100-343488
CERT Bund: WID-SEC-2026-0264 - Dell EMC Unity: Mehrere Schwachstellen

Entryinfo

Created: 01/30/2026 10:01
Updated: 03/11/2026 01:16
Changes: 01/30/2026 10:01 (64), 01/30/2026 12:32 (7), 03/11/2026 01:16 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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