How severe is CVE-2023-43203?

CVE-2023-43203 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-43203 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-2023-43203?

CVE-2023-43203 affects Dlink Dwl-6610ap Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-43203?

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

When was CVE-2023-43203 published?

CVE-2023-43203 was published on 2023-09-20 and last updated on 2026-06-17.

CVE-2023-43203

CVE-2023-43203 is a critical-severity vulnerability in Dlink Dwl-6610ap Firmware with a CVSS 3.x base score of 9.8. 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Dlink Dwl-6610ap Firmware
Published: 2023-09-20
Last modified: 2026-06-17

Description

D-LINK DWL-6610 FW_v_4.3.0.8B003C was discovered to contain a stack overflow vulnerability in the function update_users.

Frequently asked questions

What is CVE-2023-43203?: D-LINK DWL-6610 FW_v_4.3.0.8B003C was discovered to contain a stack overflow vulnerability in the function update_users.
How severe is CVE-2023-43203?: CVE-2023-43203 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-43203 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-2023-43203?: CVE-2023-43203 affects Dlink Dwl-6610ap Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-43203?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-43203 published?: CVE-2023-43203 was published on 2023-09-20 and last updated on 2026-06-17.

References

https://github.com/Archerber/bug_submit/blob/main/D-Link/DWL-6610/bug1.md

Affected products (1)

cpe:2.3:o:dlink:dwl-6610ap_firmware:4.3.0.8b003c:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dwl-6610ap Firmware

CVE-2023-43207 — Critical (CVSS 9.8): D-LINK DWL-6610 FW_v_4.3.0.8B003C was discovered to contain a command injection vulnerability in the function…
CVE-2023-43206 — Critical (CVSS 9.8): D-LINK DWL-6610 FW_v_4.3.0.8B003C was discovered to contain a command injection vulnerability in the function…
CVE-2023-43204 — Critical (CVSS 9.8): D-LINK DWL-6610 FW_v_4.3.0.8B003C was discovered to contain a command injection vulnerability in the function…
CVE-2023-43202 — Critical (CVSS 9.8): D-LINK DWL-6610 FW_v_4.3.0.8B003C was discovered to contain a command injection vulnerability in the function…

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