How severe is CVE-2023-28812?

CVE-2023-28812 has a CVSS 3.x base score of 9.1, 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 none, and availability high.

Is CVE-2023-28812 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28812?

CVE-2023-28812 affects Hikvision Localservicecomponents. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-28812?

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-2023-28812 published?

CVE-2023-28812 was published on 2023-11-23 and last updated on 2026-06-17.

CVE-2023-28812

CVE-2023-28812 is a critical-severity vulnerability in Hikvision Localservicecomponents with a CVSS 3.x base score of 9.1. 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: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Hikvision Localservicecomponents
Published: 2023-11-23
Last modified: 2026-06-17

Description

There is a buffer overflow vulnerability in a web browser plug-in could allow an attacker to exploit the vulnerability by sending crafted messages to computers installed with this plug-in, which could lead to arbitrary code execution or cause process exception of the plug-in.

Frequently asked questions

What is CVE-2023-28812?: There is a buffer overflow vulnerability in a web browser plug-in could allow an attacker to exploit the vulnerability by sending crafted messages to computers installed with this plug-in, which could lead to arbitrary code execution or cause process exception of the plug-in.
How severe is CVE-2023-28812?: CVE-2023-28812 has a CVSS 3.x base score of 9.1, 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 none, and availability high.
Is CVE-2023-28812 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28812?: CVE-2023-28812 affects Hikvision Localservicecomponents. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-28812?: 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-2023-28812 published?: CVE-2023-28812 was published on 2023-11-23 and last updated on 2026-06-17.

References

https://www.hikvision.com/en/support/cybersecurity/security-advisory/security-vulnerabilities-in-hikvision-web-browser-plug-in-locals/

Affected products (1)

cpe:2.3:a:hikvision:localservicecomponents:*:*:*:*:*:*:*:*

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