CVE-2023-42769 | Sielco Radio Link and Analog FM Transmitters Improper Access Control

The cookie session ID is of insufficient length and can be exploited by brute force, which may allow a remote attacker to obtain a valid session, bypass authentication, and manipulate the transmitter.

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-2023-42769 is rated Moderate Risk (45.7/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.07%). Review affected assets and schedule remediation.

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-2023-42769

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 1.10% 0.07% -1.04%
2 2025-11-18 0.07% 1.10% +1.04%
3 2025-04-15 — 0.07% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-42769

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 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:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 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:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2023-42769

Affected software / configurations for CVE-2023-42769

Vendor Product Version Raw CPE
sielco analog_fm_transmitter_exc5000gx_firmware — cpe:2.3:o:sielco:analog_fm_transmitter_exc5000gx_firmware:-:*:*:*:*:*:*:*
sielco analog_fm_transmitter_exc120gx_firmware — cpe:2.3:o:sielco:analog_fm_transmitter_exc120gx_firmware:-:*:*:*:*:*:*:*
sielco analog_fm_transmitter_exc300gx_firmware — cpe:2.3:o:sielco:analog_fm_transmitter_exc300gx_firmware:-:*:*:*:*:*:*:*
sielco analog_fm_transmitter_exc1600gx_firmware — cpe:2.3:o:sielco:analog_fm_transmitter_exc1600gx_firmware:-:*:*:*:*:*:*:*
sielco analog_fm_transmitter_exc2000gx_firmware — cpe:2.3:o:sielco:analog_fm_transmitter_exc2000gx_firmware:-:*:*:*:*:*:*:*
sielco analog_fm_transmitter_exc1000gx_firmware — cpe:2.3:o:sielco:analog_fm_transmitter_exc1000gx_firmware:-:*:*:*:*:*:*:*
sielco analog_fm_transmitter_exc3000gx_firmware — cpe:2.3:o:sielco:analog_fm_transmitter_exc3000gx_firmware:-:*:*:*:*:*:*:*
sielco analog_fm_transmitter_exc30gt_firmware — cpe:2.3:o:sielco:analog_fm_transmitter_exc30gt_firmware:-:*:*:*:*:*:*:*
sielco analog_fm_transmitter_exc300gt_firmware — cpe:2.3:o:sielco:analog_fm_transmitter_exc300gt_firmware:-:*:*:*:*:*:*:*
sielco analog_fm_transmitter_exc100gt_firmware — cpe:2.3:o:sielco:analog_fm_transmitter_exc100gt_firmware:-:*:*:*:*:*:*:*
sielco analog_fm_transmitter_exc5000gt_firmware — cpe:2.3:o:sielco:analog_fm_transmitter_exc5000gt_firmware:-:*:*:*:*:*:*:*
sielco analog_fm_transmitter_exc1000gt_firmware — cpe:2.3:o:sielco:analog_fm_transmitter_exc1000gt_firmware:-:*:*:*:*:*:*:*
sielco analog_fm_transmitter_exc120gt_firmware — cpe:2.3:o:sielco:analog_fm_transmitter_exc120gt_firmware:-:*:*:*:*:*:*:*
sielco radio_link_rtx19_firmware — cpe:2.3:o:sielco:radio_link_rtx19_firmware:-:*:*:*:*:*:*:*
sielco radio_link_exc19_firmware — cpe:2.3:o:sielco:radio_link_exc19_firmware:-:*:*:*:*:*:*:*

References for CVE-2023-42769

URL Tags
https://www.cisa.gov/news-events/ics-advisories/icsa-23-299-08 Third Party Advisory US Government Resource
https://www.sielco.org/en/contacts Product
cvelogic Threat Intelligence