CVE-2023-28811

CVE-2023-28811 is a high-severity vulnerability in Hikvision Nvr-216mh-c(d) Firmware with a CVSS 3.x base score of 7.4. 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-120.

Key facts

• Severity: High (CVSS 3.x base score 7.4)
• EPSS exploit prediction: 0% (31st percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-120
• Affected product: Hikvision Nvr-216mh-c(d) Firmware
• Published: 2023-11-23
• Last modified: 2026-06-17

Description

There is a buffer overflow in the password recovery feature of Hikvision NVR/DVR models. If exploited, an attacker on the same local area network (LAN) could cause the device to malfunction by sending specially crafted packets to an unpatched device.

Frequently asked questions

What is CVE-2023-28811?

There is a buffer overflow in the password recovery feature of Hikvision NVR/DVR models. If exploited, an attacker on the same local area network (LAN) could cause the device to malfunction by sending specially crafted packets to an unpatched device.

How severe is CVE-2023-28811?

CVE-2023-28811 has a CVSS 3.x base score of 7.4, 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 none, integrity none, and availability high.

Is CVE-2023-28811 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28811?

CVE-2023-28811 primarily affects Hikvision Nvr-216mh-c(d) Firmware. In total, 40 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-28811?

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-2023-28811 published?

CVE-2023-28811 was published on 2023-11-23 and last updated on 2026-06-17.

References

• https://www.hikvision.com/en/support/cybersecurity/security-advisory/buffer-overflow-vulnerability-in-hikvision-nvr-dvr-devices/

Affected products (40)

• cpe:2.3:o:hikvision:nvr-216mh-c\(d\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-216mh-c\/16p\(d\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-208mh-c\/8p\(d\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-104mh-c\/4p\(d\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-104mh-c\(d\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-108mh-c\(d\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-116mh-c\(d\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7104ni-q1\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7104ni-q1\(d\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7108ni-q1\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7108ni-q1\(d\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-104mh-d\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-104mh-d\(d\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-108h-d\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-108mh-d\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-108mh-d\(d\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-104mh-d\/4p\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-108h-d\/8p\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-108h-d\/8p\(d\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-108mh-d\/8p\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7604ni-q1\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7604ni-q1\/4p\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7608ni-q1\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7608ni-q1\/8p\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7608ni-q2\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7608ni-q2\/8p\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7616ni-q1\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7616ni-q2\/16p\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7616ni-q2\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7604ni-k1\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7604ni-k1\/4p\/4g\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7608ni-k1\/8p\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7608ni-k1\/8p\/4g\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:ds-7616ni-k1\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-208mh-c\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-104mh-c\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-108mh-c\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-108mh-c\/8p\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:nvr-116mh-c\(c\)_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:hikvision:dvr_firmware:*:*:*:*:*:*:*:*

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