Eaton G4 PDU up to 3.4.x Firmware Upgrade certificate validation

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Eaton G4 PDU up to 3.4.x. This vulnerability affects unknown code of the component Firmware Upgrade Handler. This manipulation causes certificate validation. The identification of this vulnerability is CVE-2025-48393. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Eaton G4 PDU up to 3.4.x. Affected by this vulnerability is some unknown functionality of the component Firmware Upgrade Handler. The manipulation with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The server identity check mechanism for firmware upgrade performed via command shell is insecurely implemented potentially allowing an attacker to perform a Man-in-the-middle attack. This security issue has been fixed in the latest firmware version of Eaton G4 PDU which is available on the Eaton download center.

The advisory is shared at eaton.com. This vulnerability is known as CVE-2025-48393 since 05/20/2025. The exploitation appears to be difficult. The attack can be launched remotely. Additional levels of successful authentication are needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

Upgrading to version 3.5.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-1731). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Eaton Power Distribution Unit

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.9
VulDB Temp Score: 3.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.7
CNA Vector (Eaton): 🔒

CVSSv2info

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

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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: G4 PDU 3.5.0

Timelineinfo

05/20/2025 CVE reserved
08/06/2025 +78 days Advisory disclosed
08/06/2025 +0 days VulDB entry created
02/09/2026 +187 days VulDB entry last update

Sourcesinfo

Advisory: eaton.com
Status: Confirmed

CVE: CVE-2025-48393 (🔒)
GCVE (CVE): GCVE-0-2025-48393
GCVE (VulDB): GCVE-100-319069
CERT Bund: WID-SEC-2025-1731 - Eaton Power Distribution Unit: Mehrere Schwachstellen ermöglichen Manipulation von Dateien

Entryinfo

Created: 08/06/2025 18:46
Updated: 02/09/2026 08:53
Changes: 08/06/2025 18:46 (64), 08/06/2025 21:26 (7), 02/09/2026 08:53 (2)
Complete: 🔍
Cache ID: 216::103

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