How severe is CVE-2023-28809?

CVE-2023-28809 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-28809 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28809?

CVE-2023-28809 primarily affects Hikvision Ds-k1t320efwx Firmware. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-28809?

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-2023-28809 published?

CVE-2023-28809 was published on 2023-06-15 and last updated on 2026-06-17.

CVE-2023-28809

CVE-2023-28809 is a high-severity vulnerability in Hikvision Ds-k1t320efwx Firmware with a CVSS 3.x base score of 7.5. 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-384.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-384
Affected product: Hikvision Ds-k1t320efwx Firmware
Published: 2023-06-15
Last modified: 2026-06-17

Description

Some access control products are vulnerable to a session hijacking attack because the product does not update the session ID after a user successfully logs in. To exploit the vulnerability, attackers have to request the session ID at the same time as a valid user logs in, and gain device operation permissions by forging the IP and session ID of an authenticated user.

Frequently asked questions

What is CVE-2023-28809?: Some access control products are vulnerable to a session hijacking attack because the product does not update the session ID after a user successfully logs in. To exploit the vulnerability, attackers have to request the session ID at the same time as a valid user logs in, and gain device operation permissions by forging the IP and session ID of an authenticated user.
How severe is CVE-2023-28809?: CVE-2023-28809 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-28809 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28809?: CVE-2023-28809 primarily affects Hikvision Ds-k1t320efwx Firmware. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-28809?: 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-2023-28809 published?: CVE-2023-28809 was published on 2023-06-15 and last updated on 2026-06-17.

References

Affected products (26)

cpe:2.3:o:hikvision:ds-k1t320efwx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t320efx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t320ewx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t320ex_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t320mfwx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t320mfx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t320mwx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t320mx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t341am_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t341amf_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t341cm_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t343ewx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t343ex_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t343mwx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t343mx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t671_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t671m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t671mf_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t671t_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t671tm_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t671tm-3xf_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t671tmf_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t671tmfw_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t671tmw_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t804af_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hikvision:ds-k1t804amf_firmware:-:*:*:*:*:*:*:*

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