How severe is CVE-2023-51629?

CVE-2023-51629 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-2023-51629 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-51629?

CVE-2023-51629 affects Dlink Dcs-8300lhv2 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-51629?

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-2023-51629 have an EU (EUVD) identifier?

Yes. CVE-2023-51629 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56341.

When was CVE-2023-51629 published?

CVE-2023-51629 was published on 2024-05-03 and last updated on 2026-06-17.

CVE-2023-51629

CVE-2023-51629 is a high-severity vulnerability in Dlink Dcs-8300lhv2 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-798.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-56341
Weakness: CWE-798
Affected product: Dlink Dcs-8300lhv2 Firmware
Published: 2024-05-03
Last modified: 2026-06-17

Description

D-Link DCS-8300LHV2 ONVIF Hardcoded PIN Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DCS-8300LHV2 IP cameras. Authentication is not required to exploit this vulnerability. The specific flaw exists within the configuration of the ONVIF API. The issue results from the use of a hardcoded PIN. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-21492.

Frequently asked questions

What is CVE-2023-51629?: D-Link DCS-8300LHV2 ONVIF Hardcoded PIN Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DCS-8300LHV2 IP cameras. Authentication is not required to exploit this vulnerability. The specific flaw exists within the configuration of the ONVIF API. The issue results from the use of a hardcoded PIN. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-21492.
How severe is CVE-2023-51629?: CVE-2023-51629 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-2023-51629 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-51629?: CVE-2023-51629 affects Dlink Dcs-8300lhv2 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-51629?: 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-2023-51629 have an EU (EUVD) identifier?: Yes. CVE-2023-51629 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56341.
When was CVE-2023-51629 published?: CVE-2023-51629 was published on 2024-05-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dcs-8300lhv2_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dcs-8300lhv2 Firmware

CVE-2023-51626 — High (CVSS 8.8): D-Link DCS-8300LHV2 RTSP ValidateAuthorizationHeader Username Stack-Based Buffer Overflow Remote Code Execution…
CVE-2023-51624 — High (CVSS 8.8): D-Link DCS-8300LHV2 RTSP ValidateAuthorizationHeader Nonce Stack-Based Buffer Overflow Remote Code Execution…
CVE-2023-51628 — High (CVSS 8.0): D-Link DCS-8300LHV2 ONVIF SetHostName Stack-Based Buffer Overflow Remote Code Execution Vulnerability. This…
CVE-2023-51627 — High (CVSS 8.0): D-Link DCS-8300LHV2 ONVIF Duration Stack-Based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability…
CVE-2023-51625 — High (CVSS 8.0): D-Link DCS-8300LHV2 ONVIF SetSystemDateAndTime Command Injection Remote Code Execution Vulnerability. This…

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