What’s Vulnerable › Vulnerabilities

CVE-2021-36260: Hikvision Improper Input Validation

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-01-10
• EPSS: 99.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-09-22 · updated 2026-06-17
• Weakness: CWE-78

Description

A command injection vulnerability in the web server of some Hikvision product. Due to the insufficient input validation, attacker can exploit the vulnerability to launch a command injection attack by sending some messages with malicious commands.

Affected products

• Hikvision Ds-2Cd2021G1-I(W) Firmware: all versions
• Hikvision Ds-2Cd2023G2-I(U) Firmware: all versions
• Hikvision Ds-2Cd2026G2-Iu/Sl Firmware: all versions
• Hikvision Ds-2Cd2027G2-L(U) Firmware: all versions
• Hikvision Ds-2Cd2027G2-Lu/Sl Firmware: all versions
• Hikvision Ds-2Cd2043G2-I(U) Firmware: all versions
• Hikvision Ds-2Cd2046G2-Iu/Sl Firmware: all versions
• Hikvision Ds-2Cd2047G2-L(U) Firmware: all versions
• Hikvision Ds-2Cd2063G2-I(U) Firmware: all versions
• Hikvision Ds-2Cd2066G2-I(U) Firmware: all versions
• Hikvision Ds-2Cd2066G2-Iu/Sl Firmware: all versions
• Hikvision Ds-2Cd2083G2-I(U) Firmware: all versions
• Hikvision Ds-2Cd2086G2-I(U) Firmware: all versions
• Hikvision Ds-2Cd2086G2-Iu/Sl Firmware: all versions
• Hikvision Ds-2Cd2087G2-L(U) Firmware: all versions
• Hikvision Ds-2Cd2121G0-I(W)(S) Firmware: all versions
• Hikvision Ds-2Cd2121G1-I(W) Firmware: all versions
• Hikvision Ds-2Cd2121G1-Idw Firmware: all versions
• Hikvision Ds-2Cd2121G1 Firmware: all versions
• Hikvision Ds-2Cd2123G2-I(S) Firmware: all versions
• Hikvision Ds-2Cd2123G2-Iu Firmware: all versions
• Hikvision Ds-2Cd2127G2-(-Su) Firmware: all versions
• Hikvision Ds-2Cd2143G2-I(S) Firmware: all versions
• Hikvision Ds-2Cd2143G2-Iu Firmware: all versions
• Hikvision Ds-2Cd2147G2-L(Su) Firmware: all versions
• Hikvision Ds-2Cd2163G2-I(S) Firmware: all versions
• Hikvision Ds-2Cd2163G2-Iu Firmware: all versions
• Hikvision Ds-2Cd2166G2-I(Su) Firmware: all versions
• Hikvision Ds-2Cd2183G2-I(S) Firmware: all versions
• Hikvision Ds-2Cd2183G2-I(U) Firmware: all versions

References

• http://packetstormsecurity.com/files/164603/Hikvision-Web-Server-Build-210702-Command-Injection.html
• http://packetstormsecurity.com/files/166167/Hikvision-IP-Camera-Unauthenticated-Command-Injection.html
• https://therecord.media/experts-warn-of-widespread-exploitation-involving-hikvision-cameras/
• https://www.cyfirma.com/wp-content/uploads/2022/08/HikvisionSurveillanceCamerasVulnerabilities.pdf
• https://www.hikvision.com/en/support/cybersecurity/security-advisory/security-notification-command-injection-vulnerability-in-some-hikvision-products/
• http://packetstormsecurity.com/files/164603/Hikvision-Web-Server-Build-210702-Command-Injection.html
• http://packetstormsecurity.com/files/166167/Hikvision-IP-Camera-Unauthenticated-Command-Injection.html
• https://therecord.media/experts-warn-of-widespread-exploitation-involving-hikvision-cameras/
• https://www.cyfirma.com/wp-content/uploads/2022/08/HikvisionSurveillanceCamerasVulnerabilities.pdf
• https://www.hikvision.com/en/support/cybersecurity/security-advisory/security-notification-command-injection-vulnerability-in-some-hikvision-products/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-36260

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