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 3, 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 51× in last 7d / 219× 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 714 total refreshes for this CVE.

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

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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