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Fencer Vulns
high 7.5

CVE-2023-46663 json

Improper Access Control in Sielco PolyEco1000

published 2023-10-26 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-50854

cvss
7.5
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 46%
public exploits
0
none known

Summary

Sielco PolyEco1000 is vulnerable to an attacker bypassing authorization and accessing resources behind protected pages. The application interface allows users to perform certain actions via HTTP requests without performing any validity checks to verify the requests.

Vendor advisories

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

cisa ICSA-23-299-07 updated cvss 7.5

Sielco PolyEco FM Transmitter

  • Sielco PolyEco300 FPGA_10.19_CPU_2.0.2, FPGA_10.19_CPU_2.0.0 Sielco PolyEco500 FPGA_10.16_CPU_1.7.0 Sielco PolyEco1000 FPGA_10.19_CPU_2.0.6, FPGA_10.19_CPU_1.9.4, FPGA_10.19_CPU_1.9.3
    affected: mitigation sielco.org

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
yes
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

  • Sielco PolyEco1000

Classification

Weakness

References

Sources

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.