CVE-2021-36260

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-01-10), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 100%CVSS: 9.8Exploit: cisa kev · ssvc active · Metasploit · epss top5pct · epss high · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
100%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

September 22, 2021

Last Modified

November 10, 2025

Advisory Details (4)

Auto-updated Sep 17, 2026
No patch confirmed yet.
generic
https://www.hikvision.com/en/support/cybersecurity/security-advisory/security-notification-command-injection-vulnerability-in-some-hikvision-products/
generic

Experts warn of widespread exploitation involving Hikvision cameras | The Record from Recorded Future News

https://therecord.media/experts-warn-of-widespread-exploitation-involving-hikvision-cameras/
generic

Packet Storm Security

http://packetstormsecurity.com/files/166167/Hikvision-IP-Camera-Unauthenticated-Command-Injection.html
generic

Packet Storm Security

http://packetstormsecurity.com/files/164603/Hikvision-Web-Server-Build-210702-Command-Injection.html

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 52× in last 7d / 220× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 804 total refreshes for this CVE.

  1. 2026-09-20 12:46 UTCGHSA enrichment
  2. 2026-09-20 09:09 UTCGHSA enrichment
  3. 2026-09-20 05:32 UTCGHSA enrichment
  4. 2026-09-20 01:55 UTCGHSA enrichment
  5. 2026-09-19 22:18 UTCGHSA enrichment
  6. 2026-09-19 18:42 UTCGHSA enrichment
  7. 2026-09-19 15:05 UTCGHSA enrichment
  8. 2026-09-19 11:27 UTCGHSA enrichment
  9. 2026-09-19 07:49 UTCGHSA enrichment
  10. 2026-09-19 04:12 UTCGHSA enrichment
  11. 2026-09-19 00:35 UTCGHSA enrichment
  12. 2026-09-18 20:59 UTCEG score recompute
  13. 2026-09-18 20:59 UTCGHSA enrichment
  14. 2026-09-18 19:23 UTCEPSS rescore
  15. 2026-09-18 19:20 UTCCISA KEV update
  16. 2026-09-18 17:22 UTCGHSA enrichment
  17. 2026-09-18 14:15 UTCCISA KEV update
  18. 2026-09-18 13:45 UTCGHSA enrichment
  19. 2026-09-18 10:08 UTCGHSA enrichment
  20. 2026-09-18 06:31 UTCGHSA enrichment
  21. 2026-09-18 02:54 UTCGHSA enrichment
  22. 2026-09-17 23:17 UTCGHSA enrichment
  23. 2026-09-17 19:40 UTCGHSA enrichment
  24. 2026-09-17 16:03 UTCGHSA enrichment
  25. 2026-09-17 12:26 UTCGHSA enrichment
Show 75 more
  1. 2026-09-17 08:47 UTCGHSA enrichment
  2. 2026-09-17 05:10 UTCGHSA enrichment
  3. 2026-09-17 01:33 UTCGHSA enrichment
  4. 2026-09-16 21:56 UTCGHSA enrichment
  5. 2026-09-16 18:19 UTCGHSA enrichment
  6. 2026-09-16 14:43 UTCGHSA enrichment
  7. 2026-09-16 14:10 UTCCISA KEV update
  8. 2026-09-16 11:06 UTCGHSA enrichment
  9. 2026-09-16 07:30 UTCGHSA enrichment
  10. 2026-09-16 03:52 UTCGHSA enrichment
  11. 2026-09-16 00:14 UTCGHSA enrichment
  12. 2026-09-15 20:37 UTCGHSA enrichment
  13. 2026-09-15 16:47 UTCGHSA enrichment
  14. 2026-09-15 13:11 UTCGHSA enrichment
  15. 2026-09-15 09:34 UTCGHSA enrichment
  16. 2026-09-15 05:56 UTCGHSA enrichment
  17. 2026-09-15 02:19 UTCGHSA enrichment
  18. 2026-09-14 22:41 UTCGHSA enrichment
  19. 2026-09-14 19:24 UTCCISA KEV update
  20. 2026-09-14 19:04 UTCGHSA enrichment
  21. 2026-09-14 15:27 UTCGHSA enrichment
  22. 2026-09-14 11:50 UTCGHSA enrichment
  23. 2026-09-14 08:13 UTCGHSA enrichment
  24. 2026-09-14 04:37 UTCGHSA enrichment
  25. 2026-09-14 01:00 UTCGHSA enrichment
  26. 2026-09-13 21:24 UTCGHSA enrichment
  27. 2026-09-13 17:47 UTCGHSA enrichment
  28. 2026-09-13 14:10 UTCGHSA enrichment
  29. 2026-09-13 10:33 UTCGHSA enrichment
  30. 2026-09-13 06:55 UTCGHSA enrichment
  31. 2026-09-13 03:19 UTCGHSA enrichment
  32. 2026-09-12 23:42 UTCGHSA enrichment
  33. 2026-09-12 20:05 UTCGHSA enrichment
  34. 2026-09-12 16:28 UTCGHSA enrichment
  35. 2026-09-12 12:51 UTCGHSA enrichment
  36. 2026-09-12 09:14 UTCGHSA enrichment
  37. 2026-09-12 05:37 UTCGHSA enrichment
  38. 2026-09-12 02:00 UTCGHSA enrichment
  39. 2026-09-11 22:22 UTCGHSA enrichment
  40. 2026-09-11 18:49 UTCCISA KEV update
  41. 2026-09-11 18:44 UTCGHSA enrichment
  42. 2026-09-11 15:07 UTCGHSA enrichment
  43. 2026-09-11 11:29 UTCGHSA enrichment
  44. 2026-09-11 07:50 UTCGHSA enrichment
  45. 2026-09-11 04:13 UTCGHSA enrichment
  46. 2026-09-11 00:36 UTCGHSA enrichment
  47. 2026-09-10 20:59 UTCGHSA enrichment
  48. 2026-09-10 19:28 UTCCISA KEV update
  49. 2026-09-10 17:22 UTCGHSA enrichment
  50. 2026-09-10 13:46 UTCGHSA enrichment
  51. 2026-09-10 10:09 UTCGHSA enrichment
  52. 2026-09-10 06:32 UTCGHSA enrichment
  53. 2026-09-10 02:55 UTCGHSA enrichment
  54. 2026-09-09 23:18 UTCGHSA enrichment
  55. 2026-09-09 19:41 UTCGHSA enrichment
  56. 2026-09-09 19:08 UTCCISA KEV update
  57. 2026-09-09 16:04 UTCGHSA enrichment
  58. 2026-09-09 12:27 UTCGHSA enrichment
  59. 2026-09-09 08:50 UTCGHSA enrichment
  60. 2026-09-09 05:13 UTCGHSA enrichment
  61. 2026-09-09 01:37 UTCGHSA enrichment
  62. 2026-09-08 21:59 UTCGHSA enrichment
  63. 2026-09-08 18:54 UTCCISA KEV update
  64. 2026-09-08 18:21 UTCGHSA enrichment
  65. 2026-09-08 14:43 UTCGHSA enrichment
  66. 2026-09-08 11:05 UTCGHSA enrichment
  67. 2026-09-08 07:28 UTCGHSA enrichment
  68. 2026-09-08 03:52 UTCGHSA enrichment
  69. 2026-09-08 00:14 UTCGHSA enrichment
  70. 2026-09-07 20:36 UTCGHSA enrichment
  71. 2026-09-07 16:59 UTCGHSA enrichment
  72. 2026-09-07 13:22 UTCGHSA enrichment
  73. 2026-09-07 09:45 UTCGHSA enrichment
  74. 2026-09-07 06:08 UTCGHSA enrichment
  75. 2026-09-07 02:31 UTCGHSA enrichment

Publicly available exploits

(10 references)

Working exploit code is in the public domain (9 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCsylhetyhackvenger/HIKRAVEN
    First seen Jul 17, 2026

    HIKRAVEN - Advanced Hikvision Security Assessment Platform for professional penetration testing. Detects 12+ CVEs including CVE-2021-36260 (CRITICAL), tests default credentials, performs network discovery, and generates professional security reports. For authorized security testing only! 🛡️🔒

    Open source ↗
  • GitHub PoCyanxinwu946/hikvision-unauthenticated-rce-cve-2021-36260
    First seen Jan 21, 2026

    海康威视RCE漏洞 批量检测和利用工具

    Open source ↗
  • GitHub PoCaengussong/hikvision_probe
    First seen Nov 26, 2024

    Identify hikvision ip and probe for cve-s (CVE-2017-7921, CVE-2022-28171, CVE-2021-36260)

    Open source ↗
  • GitHub PoCtamim1089/HikvisionExploiter
    First seen Jul 5, 2024

    HikvisionExploiter is a Python-based utility designed to automate exploitation and directory accessibility checks on Hikvision network cameras exploiting the Web interface Version 3.1.3.150324 + CVE-2021-36260 Detection

    Open source ↗
  • GitHub PoCNanoTrash/hikvision_brute
    First seen Mar 7, 2024

    Brute Hikvision CAMS with CVE-2021-36260 Exploit

    Open source ↗
  • GitHub PoCCuerz/CVE-2021-36260
    First seen Aug 3, 2022

    海康威视RCE漏洞 批量检测和利用工具

    Open source ↗
  • GitHub PoCtuntin9x/CheckHKRCE
    First seen Dec 13, 2021

    CVE-2021-36260

    Open source ↗
  • GitHub PoCTaroballzChen/CVE-2021-36260-metasploit
    First seen Nov 3, 2021

    the metasploit script(POC) about CVE-2021-36260

    Open source ↗
  • GitHub PoCAiminsun/CVE-2021-36260
    First seen Oct 27, 2021

    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.

    Open source ↗
  • Exploit-DBEDB-50441
    First seen Oct 25, 2021

    Hikvision Web Server Build 210702 - Command Injection

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2021-36260?
CVE-2021-36260 is a critical vulnerability published on September 22, 2021. 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.
When was CVE-2021-36260 disclosed?
CVE-2021-36260 was first published in the National Vulnerability Database on September 22, 2021, with the most recent update on November 10, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-36260 actively exploited?
Yes. CISA added CVE-2021-36260 to the Known Exploited Vulnerabilities catalog on January 10, 2022, affecting Hikvision Security cameras web server. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2021-36260?
CVE-2021-36260 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2021-36260?
CVE-2021-36260 affects Hikvision Security cameras web server. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2021-36260?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-36260, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2021-36260

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