Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-36260

99
FAUCET Score

CVE-2021-36260 is a critical command injection vulnerability affecting the web server of various Hikvision products, stemming from insufficient input validation. This flaw allows unauthenticated attackers to execute arbitrary commands by sending specially crafted messages. With a CVSS score of 9.8 (CRITICAL) and an EPSS score indicating extremely high exploitability, successful exploitation can lead to complete compromise of confidentiality, integrity, and availability. The vulnerability is actively exploited in the wild, with public exploit modules available in Metasploit and Nuclei, and has garnered significant community discussion and media coverage, including its use by botnets like Moobot.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:hikvision:ds-2cd2026g2-iu\/sl_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:hikvision:ds-2cd2046g2-iu\/sl_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:hikvision:ds-2cd2066g2-i\(u\)_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:hikvision:ds-2cd2066g2-iu\/sl_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:hikvision:ds-2cd2086g2-i\(u\)_firmware:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
99.87%
Probability of exploitation in next 30 days
EPSS Percentile
100.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Jan 10, 2022
Metasploit: Hikvision IP Camera Unauthenticated Command Injection · Sep 18, 2021
Nuclei: CVE-2021-36260 · Oct 29, 2021
ExploitDB: EDB-50441 · Oct 25, 2021
This CVE's current EPSS score of 0.9987 is in the 100th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/164603/Hikvision-Web-Server-Build-210702-Command-Injection.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/166167/Hikvision-IP-Camera-Unauthenticated-Command-Injection.html
ExploitThird Party AdvisoryVDB Entry
therecord.media / experts-warn-of-widespread-exploitation-involving-hikvision-cameras
Third Party Advisory
cyfirma.com / wp-content/uploads/2022/08/HikvisionSurveillanceCamerasVulnerabilities.pdf
Broken LinkExploitThird Party Advisory
hikvision.com / en/support/cybersecurity/security-advisory/security-notification-command-injection-vulnerability-in-some-hikvision-products
Vendor Advisory