6.9
MEDIUM CVSS 4.0
CVE-2026-32958
Silex SD-330AC and AMC Manager Cryptographic Key Hard-Coded Vulnerability
Description

SD-330AC and AMC Manager provided by silex technology, Inc. use a hard-coded cryptographic key. An administrative user may be directed to apply a fake firmware update.

INFO

Published Date :

April 20, 2026, 4:16 a.m.

Last Modified :

April 22, 2026, 5 p.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2026-32958 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Silextechnology sd-330ac_firmware
2 Silextechnology sd-330ac
3 Silextechnology amc_manager
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM ede6fdc4-6654-4307-a26d-3331c018e2ce
CVSS 3.1 MEDIUM [email protected]
CVSS 4.0 MEDIUM ede6fdc4-6654-4307-a26d-3331c018e2ce
CVSS 4.0 MEDIUM [email protected]
Solution
Update firmware to a version that addresses the hard-coded key issue and prevents fake updates.
  • Obtain and apply the latest firmware update from the vendor.
  • Verify the integrity of all firmware updates before applying.
  • Restrict administrative access to firmware update functions.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-32958.

URL Resource
https://jvn.jp/en/vu/JVNVU94271449/ Third Party Advisory
https://www.silex.jp/support/security-advisories/2026-001 Vendor Advisory
https://www.silex.jp/support/security-advisories/en/2026-001 Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-32958 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-32958 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-32958 vulnerability anywhere in the article.

  • The Hacker News
22 BRIDGE:BREAK Flaws Expose 20,000 Lantronix and Silex Serial-to-IP Converters

Cybersecurity researchers have identified 22 new vulnerabilities in popular models of serial-to-IP converters from Lantronix and Silex that could be exploited to hijack susceptible devices and tamper ... Read more

Published Date: Apr 21, 2026 (2 weeks, 5 days ago)

The following table lists the changes that have been made to the CVE-2026-32958 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Apr. 22, 2026

    Action Type Old Value New Value
    Added CPE Configuration AND OR *cpe:2.3:o:silextechnology:sd-330ac_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.50 OR cpe:2.3:h:silextechnology:sd-330ac:-:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:silextechnology:amc_manager:*:*:*:*:*:*:*:* versions up to (excluding) 5.1.0
    Added Reference Type JPCERT/CC: https://jvn.jp/en/vu/JVNVU94271449/ Types: Third Party Advisory
    Added Reference Type JPCERT/CC: https://www.silex.jp/support/security-advisories/2026-001 Types: Vendor Advisory
    Added Reference Type JPCERT/CC: https://www.silex.jp/support/security-advisories/en/2026-001 Types: Vendor Advisory
  • New CVE Received by [email protected]

    Apr. 20, 2026

    Action Type Old Value New Value
    Added Description SD-330AC and AMC Manager provided by silex technology, Inc. use a hard-coded cryptographic key. An administrative user may be directed to apply a fake firmware update.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
    Added CWE CWE-321
    Added Reference https://jvn.jp/en/vu/JVNVU94271449/
    Added Reference https://www.silex.jp/support/security-advisories/2026-001
    Added Reference https://www.silex.jp/support/security-advisories/en/2026-001
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.