SD-330AC and AMC Manager provided by silex technology, Inc.

published 2026-04-20 6 mo ago modified 2026-10-26 13 d ago also EUVD-2026-23747

cvss: 8.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

SD-330AC and AMC Manager provided by silex technology, Inc. contain a stack-based buffer overflow vulnerability in processing the redirect URLs. Arbitrary code may be executed on the device.

Patch / fix

fixed in 2

silextechnology amc_manager 5.1.0
silextechnology sd-330ac_firmware 1.50

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-111-10 updated 2026-04-21 cvss 8.8

Silex Technology SD-330AC and AMC Manager

Silex Technology AMC Manager <=5.0.2 Silex Technology SD-330AC <=1.42
affected: vendor fix, mitigation “CVE-2026-32955, CVE-2026-32956, CVE-2026-32957, and CVE-2026-32963: Disable HTTP/HTTPS service.” silex.jp

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 6 mo ago (2026-04-20)

Exploit prediction

0.62% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA	4.0	8.7	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA	4.0	8.7	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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

Affected products

silex technology, Inc. SD-330AC
silex technology, Inc. AMC Manager

Classification

Weakness

CWE-121 Stack-based Buffer Overflow

References

silex.jp /support/security-advisories/en/2026-001
vendor-advisory
silex.jp /support/security-advisories/2026-001
vendor-advisory
jvn.jp /en/vu/JVNVU94271449/
third-party-advisory

Sources

CVE List CVE-2026-32955
NVD CVE-2026-32955

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary