Silabs Simplicity SDK/Gecko SDK buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Silabs Simplicity SDK and Gecko SDK. Affected by this vulnerability is an unknown functionality. The manipulation results in buffer overflow. This vulnerability is cataloged as CVE-2025-8414. The attack must originate from the local network. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Silabs Simplicity SDK and Gecko SDK (version unknown). Affected is an unknown function. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Due to improper input validation, a buffer overflow vulnerability is present in Zigbee EZSP Host Applications. If the buffer overflows, stack corruption is possible. In certain conditions, this could lead to arbitrary code execution. Access to a network key is required to exploit this vulnerability.

The advisory is shared for download at community.silabs.com. This vulnerability is traded as CVE-2025-8414 since 07/31/2025. The exploitability is told to be easy. The attack needs to approached within the local network. 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 10/18/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-34896). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

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: 8.0
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.0
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

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: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/31/2025 CVE reserved
10/17/2025 +78 days Advisory disclosed
10/17/2025 +0 days VulDB entry created
10/18/2025 +1 days VulDB entry last update

Sourcesinfo

Advisory: community.silabs.com
Status: Confirmed

CVE: CVE-2025-8414 (🔒)
GCVE (CVE): GCVE-0-2025-8414
GCVE (VulDB): GCVE-100-328944
EUVD: 🔒

Entryinfo

Created: 10/17/2025 18:13
Updated: 10/18/2025 02:27
Changes: 10/17/2025 18:13 (63), 10/18/2025 02:27 (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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