CVE-2023-46663 | Improper Access Control in Sielco PolyEco1000

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.

Published: 2023-10-26 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-46663 is rated Low Risk (30.9/100): CVSS High severity, with low exploitation likelihood (EPSS 0.02%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-46663

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 0.15% 0.02% -0.13%
2 2025-11-18 0.02% 0.15% +0.13%
3 2025-04-15 — 0.02% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-46663

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 5.2 [email protected]

Weakness enumeration for CVE-2023-46663

Affected software / configurations for CVE-2023-46663

Vendor Product Version Raw CPE
sielco polyeco500_firmware 1.7.0 cpe:2.3:o:sielco:polyeco500_firmware:1.7.0:*:*:*:cpu:*:*:*
sielco polyeco500_firmware 10.16 cpe:2.3:o:sielco:polyeco500_firmware:10.16:*:*:*:fpga:*:*:*
sielco polyeco300_firmware 2.0.0 cpe:2.3:o:sielco:polyeco300_firmware:2.0.0:*:*:*:cpu:*:*:*
sielco polyeco300_firmware 2.0.2 cpe:2.3:o:sielco:polyeco300_firmware:2.0.2:*:*:*:cpu:*:*:*
sielco polyeco300_firmware 10.19 cpe:2.3:o:sielco:polyeco300_firmware:10.19:*:*:*:fpga:*:*:*
sielco polyeco1000_firmware 1.9.3 cpe:2.3:o:sielco:polyeco1000_firmware:1.9.3:*:*:*:cpu:*:*:*
sielco polyeco1000_firmware 1.9.4 cpe:2.3:o:sielco:polyeco1000_firmware:1.9.4:*:*:*:cpu:*:*:*
sielco polyeco1000_firmware 2.0.6 cpe:2.3:o:sielco:polyeco1000_firmware:2.0.6:*:*:*:cpu:*:*:*
sielco polyeco1000_firmware 10.19 cpe:2.3:o:sielco:polyeco1000_firmware:10.19:*:*:*:fpga:*:*:*

References for CVE-2023-46663

URL Tags
https://www.cisa.gov/news-events/ics-advisories/icsa-23-299-07 Third Party Advisory US Government Resource
cvelogic Threat Intelligence