How severe is CVE-2023-43696?

CVE-2023-43696 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.

Is CVE-2023-43696 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43696?

CVE-2023-43696 affects Sick Apu0200 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-43696?

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-2023-43696 published?

CVE-2023-43696 was published on 2023-10-09 and last updated on 2026-06-17.

CVE-2023-43696

CVE-2023-43696 is a high-severity vulnerability in Sick Apu0200 Firmware with a CVSS 3.x base score of 8.2. 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-434.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Sick Apu0200 Firmware
Published: 2023-10-09
Last modified: 2026-06-17

Description

Improper Access Control in SICK APU allows an unprivileged remote attacker to download as well as upload arbitrary files via anonymous access to the FTP server.

Frequently asked questions

What is CVE-2023-43696?: Improper Access Control in SICK APU allows an unprivileged remote attacker to download as well as upload arbitrary files via anonymous access to the FTP server.
How severe is CVE-2023-43696?: CVE-2023-43696 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.
Is CVE-2023-43696 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43696?: CVE-2023-43696 affects Sick Apu0200 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-43696?: 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-2023-43696 published?: CVE-2023-43696 was published on 2023-10-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:sick:apu0200_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Sick Apu0200 Firmware

CVE-2023-43700 — High (CVSS 7.7): Missing Authorization in RDT400 in SICK APU allows an unprivileged remote attacker to modify data via HTTP requests…
CVE-2023-43699 — High (CVSS 7.5): Improper Restriction of Excessive Authentication Attempts in RDT400 in SICK APU allows an unprivileged remote attacker…
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CVE-2023-43697 — Medium (CVSS 6.5): Modification of Assumed-Immutable Data (MAID) in RDT400 in SICK APU allows an unprivileged remote attacker to make the…
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