How severe is CVE-2023-5246?

CVE-2023-5246 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-5246 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5246?

CVE-2023-5246 primarily affects Sick Fx0-gent00000 Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-5246?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-5246 published?

CVE-2023-5246 was published on 2023-10-23 and last updated on 2026-06-17.

CVE-2023-5246

CVE-2023-5246 is a high-severity vulnerability in Sick Fx0-gent00000 Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Sick Fx0-gent00000 Firmware
Published: 2023-10-23
Last modified: 2026-06-17

Description

Authentication Bypass by Capture-replay in SICK Flexi Soft Gateways with Partnumbers 1044073, 1127717, 1130282, 1044074, 1121597, 1099832, 1051432, 1127487, 1069070, 1112296, 1044072, 1121596, 1099830 allows an unauthenticated remote attacker to potentially impact the availability, integrity and confidentiality of the gateways via an authentication bypass by capture-replay.

Frequently asked questions

What is CVE-2023-5246?: Authentication Bypass by Capture-replay in SICK Flexi Soft Gateways with Partnumbers 1044073, 1127717, 1130282, 1044074, 1121597, 1099832, 1051432, 1127487, 1069070, 1112296, 1044072, 1121596, 1099830 allows an unauthenticated remote attacker to potentially impact the availability, integrity and confidentiality of the gateways via an authentication bypass by capture-replay.
How severe is CVE-2023-5246?: CVE-2023-5246 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-5246 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5246?: CVE-2023-5246 primarily affects Sick Fx0-gent00000 Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-5246?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-5246 published?: CVE-2023-5246 was published on 2023-10-23 and last updated on 2026-06-17.

References

Affected products (13)

cpe:2.3:o:sick:fx0-gent00000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:sick:fx0-gent00010_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:sick:fx0-gent00030_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:sick:fx0-get00000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:sick:fx0-get00010_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:sick:fx0-gmod00000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:sick:fx0-gmod00010_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:sick:fx0-gmod00030_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:sick:fx0-gpnt00000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:sick:fx0-gpnt00010_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:sick:fx0-gpnt00030_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:sick:fx0-gepr00000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:sick:fx0-gepr00010_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Sick Fx0-gent00000 Firmware

CVE-2023-23451 — Critical (CVSS 9.8): The Flexi Classic and Flexi Soft Gateways SICK UE410-EN3 FLEXI ETHERNET GATEW. with serial number <=2311xxxx all…
CVE-2023-23453 — Critical (CVSS 9.8): Missing Authentication for Critical Function in SICK FX0-GENT v3 Firmware Version V3.04 and V3.05 allows an…
CVE-2023-23444 — High (CVSS 7.5): Missing Authentication for Critical Function in SICK Flexi Classic and Flexi Soft Gateways with Partnumbers 1042193,…
CVE-2019-14753 — High (CVSS 7.5): SICK FX0-GPNT00000 and FX0-GENT00000 devices through 3.4.0 have a Buffer Overflow

All CVEs affecting Sick Fx0-gent00000 Firmware →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →