How severe is CVE-2023-24331?

CVE-2023-24331 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-2023-24331 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-24331?

CVE-2023-24331 affects Dlink Dir-816 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-24331?

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.

Does CVE-2023-24331 have an EU (EUVD) identifier?

Yes. CVE-2023-24331 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-28387.

When was CVE-2023-24331 published?

CVE-2023-24331 was published on 2024-02-21 and last updated on 2026-06-17.

CVE-2023-24331

CVE-2023-24331 is a critical-severity vulnerability in Dlink Dir-816 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-77.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-28387
Weakness: CWE-77
Affected product: Dlink Dir-816 Firmware
Published: 2024-02-21
Last modified: 2026-06-17

Description

Command Injection vulnerability in D-Link Dir 816 with firmware version DIR-816_A2_v1.10CNB04 allows attackers to run arbitrary commands via the urlAdd parameter.

Frequently asked questions

What is CVE-2023-24331?: Command Injection vulnerability in D-Link Dir 816 with firmware version DIR-816_A2_v1.10CNB04 allows attackers to run arbitrary commands via the urlAdd parameter.
How severe is CVE-2023-24331?: CVE-2023-24331 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-2023-24331 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-24331?: CVE-2023-24331 affects Dlink Dir-816 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-24331?: 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.
Does CVE-2023-24331 have an EU (EUVD) identifier?: Yes. CVE-2023-24331 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-28387.
When was CVE-2023-24331 published?: CVE-2023-24331 was published on 2024-02-21 and last updated on 2026-06-17.

References

https://github.com/caoyebo/CVE/tree/main/Dlink%20816%20-%20CVE-2023-24331

Affected products (1)

cpe:2.3:o:dlink:dir-816_firmware:1.10nb04:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dir-816 Firmware

CVE-2026-4184 — Critical (CVSS 9.8): A vulnerability was detected in D-Link DIR-816 1.10CNB05. Affected by this vulnerability is an unknown functionality of…
CVE-2026-4183 — Critical (CVSS 9.8): A security vulnerability has been detected in D-Link DIR-816 1.10CNB05. Affected is an unknown function of the file…
CVE-2026-4182 — Critical (CVSS 9.8): A weakness has been identified in D-Link DIR-816 1.10CNB05. This impacts an unknown function of the file…
CVE-2026-4181 — Critical (CVSS 9.8): A security flaw has been discovered in D-Link DIR-816 1.10CNB05. This affects an unknown function of the file…
CVE-2025-45931 — Critical (CVSS 9.8): An issue D-Link DIR-816-A2 DIR-816A2_FWv1.10CNB05_R1B011D88210 allows a remote attacker to execute arbitrary code via…
CVE-2025-5630 — Critical (CVSS 9.8): A vulnerability has been found in D-Link DIR-816 1.10CNB05 and classified as critical. This vulnerability affects…

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