Dell Unity up to 5.5.1 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 5.5.1. This affects an unknown function. Executing a manipulation can lead to os command injection. This vulnerability is registered as CVE-2025-43939. The attack needs to be launched locally. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Dell Unity up to 5.5.1. This vulnerability affects an unknown code block. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Dell Unity, version(s) 5.4 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 Command execution and Elevation of privileges.

The weakness was published with Ubisectech Sirius Team as dsa-2025-379. The advisory is shared for download at dell.com. This vulnerability was named CVE-2025-43939 since 04/20/2025. The exploitation appears 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 10/31/2025). The MITRE ATT&CK project declares the attack technique as T1202.

Upgrading to version 5.5.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-2457). Once again VulDB remains the best source for vulnerability data.

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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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 5.5.2

Timelineinfo

04/20/2025 CVE reserved
10/30/2025 +193 days Advisory disclosed
10/30/2025 +0 days VulDB entry created
10/31/2025 +1 days VulDB entry last update

Sourcesinfo

Vendor: dell.com

Advisory: dsa-2025-379
Organization: Ubisectech Sirius Team
Status: Confirmed

CVE: CVE-2025-43939 (🔒)
GCVE (CVE): GCVE-0-2025-43939
GCVE (VulDB): GCVE-100-330580
CERT Bund: WID-SEC-2025-2457 - Dell EMC Unity: Mehrere Schwachstellen

Entryinfo

Created: 10/30/2025 16:09
Updated: 10/31/2025 12:34
Changes: 10/30/2025 16:09 (65), 10/31/2025 12:34 (7)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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