CVE-2021-36260 kev in the critical feed json
A command injection vulnerability in the web server of some Hikvision product.
published 2021-09-22 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-22880
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Exploited
- added 2022-01-10
- epss
- 99.9%
- EPSS 99.9% chance of exploitation in 30 days, percentile 99.9%
- public exploits
- 2
- Metasploit, Exploit-DB, plus a Nuclei check
Summary
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.
Patch / fix
cisa required action Apply updates per vendor instructions.
Timeline
- First public exploit (Metasploit exploit/linux/http/hikvision_cve_2021_36260_blind)
- Published
- Added to CISA KEV
- CISA patch deadline
- CISA SSVC: exploitation active
Known exploited
- Added
- 4 y ago
- Patch by
- 2022-01-24 (4 y ago)
- Ransomware
- Not known
- Required action
- Apply updates per vendor instructions.
- Vendor, product
- Hikvision, Security cameras web server
- CISA name
- Hikvision Improper Input Validation
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- yes
- Technical impact
- total
- Assessed
- 21 mo ago
Exploit prediction
99.87% chance of exploitation in the next 30 days, higher than 99.9% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/linux/http/hikvision_cve_2021_36260_blind Hikvision IP Camera Unauthenticated Command Injection metasploit exploit, excellent rank, 2021-09-18
- EDB-50441 Hikvision Web Server Build 210702 - Command Injection webapps, 2021-10-25
- Nuclei template Hikvision IP camera/NVR - Remote Command Execution nuclei detection template
- packetstormsecurity.com http://packetstormsecurity.com/files/164603/Hikvision-Web-Server-Build-210702-Command-Injection.html referenced PoC, tagged "exploit" by a source, unverified
- packetstormsecurity.com http://packetstormsecurity.com/files/166167/Hikvision-IP-Camera-Unauthenticated-Command-Injection.html referenced PoC, tagged "exploit" by a source, unverified
- cyfirma.com https://www.cyfirma.com/wp-content/uploads/2022/08/HikvisionSurveillanceCamerasVulnerabilities.pdf referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
packetstormsecurity.com
/files/164603/Hikvision-Web-Server-Build-210702-Command-Injection.html
exploit, third-party-advisory, vdb-entry
-
packetstormsecurity.com
/files/166167/Hikvision-IP-Camera-Unauthenticated-Command-Injection.html
exploit, third-party-advisory, vdb-entry
-
cyfirma.com
/wp-content/uploads/2022/08/HikvisionSurveillanceCamerasVulnerabilities.pdf
broken-link, exploit, third-party-advisory
-
hikvision.com
/en/support/cybersecurity/security-advisory/security-notification-command-injection-vulnerability-in-some-hikv
vendor-advisory
-
therecord.media
/experts-warn-of-widespread-exploitation-involving-hikvision-cameras/
third-party-advisory
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-36260
government-resource, us-government-resource
Sources
- CVE List CVE-2021-36260
- NVD CVE-2021-36260
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.