Silabs Simplicity SDK 2024.12.0 entropy

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
1.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Silabs Simplicity SDK. Affected is an unknown function. Performing a manipulation results in entropy. This vulnerability was named CVE-2025-7432. The attack may be carried out on the physical device. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Silabs Simplicity SDK. It has been classified as problematic. This affects an unknown functionality. The manipulation with an unknown input leads to a entropy vulnerability. CWE is classifying the issue as CWE-331. The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others. This is going to have an impact on confidentiality. The summary by CVE is:

DPA countermeasures in Silicon Labs' Series 2 devices are not reseeded under certain conditions.  This may allow an attacker to eventually extract secret keys through a DPA attack.

It is possible to read the advisory at community.silabs.com. This vulnerability is uniquely identified as CVE-2025-7432 since 07/10/2025. The exploitability is told to be difficult. Attacking locally is a requirement. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600.001 according to MITRE ATT&CK.

Upgrading to version 2025.12.0 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 2.0
VulDB Meta Temp Score: 1.9

VulDB Base Score: 2.0
VulDB Temp Score: 1.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

Exploitinginfo

Class: Entropy
CWE: CWE-331 / CWE-330 / CWE-310
CAPEC: 🔒
ATT&CK: 🔒

Physical: Yes
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Simplicity SDK 2025.12.0

Timelineinfo

07/10/2025 CVE reserved
02/09/2026 +214 days Advisory disclosed
02/09/2026 +0 days VulDB entry created
02/09/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: community.silabs.com
Status: Confirmed

CVE: CVE-2025-7432 (🔒)
GCVE (CVE): GCVE-0-2025-7432
GCVE (VulDB): GCVE-100-345003

Entryinfo

Created: 02/09/2026 17:55
Changes: 02/09/2026 17:55 (66)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!