How severe is CVE-2023-50209?

CVE-2023-50209 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-50209 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-50209?

CVE-2023-50209 affects Dlink G416 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-50209?

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.

Does CVE-2023-50209 have an EU (EUVD) identifier?

Yes. CVE-2023-50209 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55031.

When was CVE-2023-50209 published?

CVE-2023-50209 was published on 2024-05-03 and last updated on 2026-06-17.

CVE-2023-50209

CVE-2023-50209 is a high-severity vulnerability in Dlink G416 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-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-55031
Weakness: CWE-787
Affected product: Dlink G416 Firmware
Published: 2024-05-03
Last modified: 2026-06-17

Description

D-Link G416 cfgsave Stack-Based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 wireless routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21442.

Frequently asked questions

What is CVE-2023-50209?: D-Link G416 cfgsave Stack-Based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 wireless routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21442.
How severe is CVE-2023-50209?: CVE-2023-50209 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-50209 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-50209?: CVE-2023-50209 affects Dlink G416 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-50209?: 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.
Does CVE-2023-50209 have an EU (EUVD) identifier?: Yes. CVE-2023-50209 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55031.
When was CVE-2023-50209 published?: CVE-2023-50209 was published on 2024-05-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:g416_firmware:*:*:*:*:*:*:*:*

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