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Critical 9.8Known exploited (CISA KEV)Published Sep 22, 2021
CVE-2021-36260A command injection vulnerability in the web server of some Hikvision product.
Updated under an hour ago ()
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It affects hikvision ds-2cd2026g2-iu/sl_firmware and 59 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Jan 10, 2022; federal agencies had to remediate by Jan 24, 2022. Treat that date as your deadline.
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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
- 9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-78
- Known exploited
- Added to CISA KEV Jan 10, 2022; federal remediation due Jan 24, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 99.87% (percentile 100)
- Assigned by
- hikvision
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
hikvision ds-2cd2026g2-iu/sl_firmware hikvision:ds-2cd2026g2-iu/sl_firmware | all versions | NVD |
hikvision ds-2cd2046g2-iu/sl_firmware hikvision:ds-2cd2046g2-iu/sl_firmware | all versions | NVD |
hikvision ds-2cd2066g2-i(u)_firmware hikvision:ds-2cd2066g2-i(u)_firmware | all versions | NVD |
hikvision ds-2cd2066g2-iu/sl_firmware hikvision:ds-2cd2066g2-iu/sl_firmware | all versions | NVD |
hikvision ds-2cd2086g2-i(u)_firmware hikvision:ds-2cd2086g2-i(u)_firmware | all versions | NVD |
hikvision ds-2cd2086g2-iu/sl_firmware hikvision:ds-2cd2086g2-iu/sl_firmware | all versions | NVD |
hikvision ds-2cd2166g2-i(su)_firmware hikvision:ds-2cd2166g2-i(su)_firmware | all versions | NVD |
hikvision ds-2cd2186g2-i(su)_firmware hikvision:ds-2cd2186g2-i(su)_firmware | all versions | NVD |
hikvision ds-2cd2186g2-isu_firmware hikvision:ds-2cd2186g2-isu_firmware | all versions | NVD |
hikvision ds-2cd2326g2-isu/sl_firmware hikvision:ds-2cd2326g2-isu/sl_firmware | all versions | NVD |
hikvision ds-2cd2346g2-isu/sl_firmware hikvision:ds-2cd2346g2-isu/sl_firmware | all versions | NVD |
hikvision ds-2cd2366g2-i(u)_firmware hikvision:ds-2cd2366g2-i(u)_firmware | all versions | NVD |
hikvision ds-2cd2366g2-isu/sl_firmware hikvision:ds-2cd2366g2-isu/sl_firmware | all versions | NVD |
hikvision ds-2cd2386g2-i(u)_firmware hikvision:ds-2cd2386g2-i(u)_firmware | all versions | NVD |
hikvision ds-2cd2386g2-isu/sl_firmware hikvision:ds-2cd2386g2-isu/sl_firmware | all versions | NVD |
hikvision ds-2cd2426g2-i_firmware hikvision:ds-2cd2426g2-i_firmware | all versions | NVD |
hikvision ds-2cd2446g2-i_firmware hikvision:ds-2cd2446g2-i_firmware | all versions | NVD |
hikvision ds-2cd2526g2-i(s)_firmware hikvision:ds-2cd2526g2-i(s)_firmware | all versions | NVD |
hikvision ds-2cd2526g2-is_firmware hikvision:ds-2cd2526g2-is_firmware | all versions | NVD |
hikvision ds-2cd2546g2-i(s)_firmware hikvision:ds-2cd2546g2-i(s)_firmware | all versions | NVD |
hikvision ds-2cd2566g2-i(s)_firmware hikvision:ds-2cd2566g2-i(s)_firmware | all versions | NVD |
hikvision ds-2cd2586g2-i(s)_firmware hikvision:ds-2cd2586g2-i(s)_firmware | all versions | NVD |
hikvision ds-2cd2626g2-izsu/sl_firmware hikvision:ds-2cd2626g2-izsu/sl_firmware | all versions | NVD |
hikvision ds-2cd2646g2-izsu/sl_firmware hikvision:ds-2cd2646g2-izsu/sl_firmware | all versions | NVD |
hikvision ds-2cd2666g2-izs_firmware hikvision:ds-2cd2666g2-izs_firmware | all versions | NVD |
hikvision ds-2cd2666g2-izsu/sl_firmware hikvision:ds-2cd2666g2-izsu/sl_firmware | all versions | NVD |
hikvision ds-2cd2686g2-izs_firmware hikvision:ds-2cd2686g2-izs_firmware | all versions | NVD |
hikvision ds-2cd2686g2-izsu/sl_firmware hikvision:ds-2cd2686g2-izsu/sl_firmware | all versions | NVD |
hikvision ds-2cd2766g2-izs_firmware hikvision:ds-2cd2766g2-izs_firmware | all versions | NVD |
hikvision ds-2cd2786g2-izs_firmware hikvision:ds-2cd2786g2-izs_firmware | all versions | NVD |
hikvision ds-2cd2027g2-l(u)_firmware hikvision:ds-2cd2027g2-l(u)_firmware | all versions | NVD |
hikvision ds-2cd2047g2-l(u)_firmware hikvision:ds-2cd2047g2-l(u)_firmware | all versions | NVD |
hikvision ds-2cd2027g2-lu/sl_firmware hikvision:ds-2cd2027g2-lu/sl_firmware | all versions | NVD |
hikvision ds-2cd2087g2-l(u)_firmware hikvision:ds-2cd2087g2-l(u)_firmware | all versions | NVD |
hikvision ds-2cd2127g2-(-su)_firmware hikvision:ds-2cd2127g2-(-su)_firmware | all versions | NVD |
hikvision ds-2cd2147g2-l(su)_firmware hikvision:ds-2cd2147g2-l(su)_firmware | all versions | NVD |
hikvision ds-2cd2327g2-l(u)_firmware hikvision:ds-2cd2327g2-l(u)_firmware | all versions | NVD |
hikvision ds-2cd2347g2-l(u)_firmware hikvision:ds-2cd2347g2-l(u)_firmware | all versions | NVD |
hikvision ds-2cd2347g2-lsu/sl_firmware hikvision:ds-2cd2347g2-lsu/sl_firmware | all versions | NVD |
hikvision ds-2cd2387g2-l(u)_firmware hikvision:ds-2cd2387g2-l(u)_firmware | all versions | NVD |
hikvision ds-2cd2527g2-ls_firmware hikvision:ds-2cd2527g2-ls_firmware | all versions | NVD |
hikvision ds-2cd2547g2-ls_firmware hikvision:ds-2cd2547g2-ls_firmware | all versions | NVD |
hikvision ds-2cd2547g2-lzs_firmware hikvision:ds-2cd2547g2-lzs_firmware | all versions | NVD |
hikvision ds-2cd2121g0-i(w)(s)_firmware hikvision:ds-2cd2121g0-i(w)(s)_firmware | all versions | NVD |
hikvision ds-2cd2321g0-i/nf_firmware hikvision:ds-2cd2321g0-i/nf_firmware | all versions | NVD |
hikvision ds-2cd2421g0-i(d)(w)_firmware hikvision:ds-2cd2421g0-i(d)(w)_firmware | all versions | NVD |
hikvision ds-2cd2421g0-i(d)w_firmware hikvision:ds-2cd2421g0-i(d)w_firmware | all versions | NVD |
hikvision ds-2cd2621g0-i(z)(s)_firmware hikvision:ds-2cd2621g0-i(z)(s)_firmware | all versions | NVD |
hikvision ds-2cd2721g0-i(z)(s)_firmware hikvision:ds-2cd2721g0-i(z)(s)_firmware | all versions | NVD |
hikvision ds-2cd2121g1-i(w)_firmware hikvision:ds-2cd2121g1-i(w)_firmware | all versions | NVD |
hikvision ds-2cd2121g1_firmware hikvision:ds-2cd2121g1_firmware | all versions | NVD |
hikvision ds-2cd2121g1-idw_firmware hikvision:ds-2cd2121g1-idw_firmware | all versions; all versions; all versions | NVD |
hikvision ds-2cd2023g2-i(u)_firmware hikvision:ds-2cd2023g2-i(u)_firmware | all versions; all versions | NVD |
hikvision ds-2cd2043g2-i(u)_firmware hikvision:ds-2cd2043g2-i(u)_firmware | all versions; all versions | NVD |
hikvision ds-2cd2063g2-i(u)_firmware hikvision:ds-2cd2063g2-i(u)_firmware | all versions; all versions | NVD |
hikvision ds-2cd2083g2-i(u)_firmware hikvision:ds-2cd2083g2-i(u)_firmware | all versions; all versions | NVD |
hikvision ds-2cd2123g2-i(s)_firmware hikvision:ds-2cd2123g2-i(s)_firmware | all versions; all versions | NVD |
hikvision ds-2cd2123g2-iu_firmware hikvision:ds-2cd2123g2-iu_firmware | all versions; all versions | NVD |
hikvision ds-2cd2143g2-i(s)_firmware hikvision:ds-2cd2143g2-i(s)_firmware | all versions; all versions | NVD |
hikvision ds-2cd2143g2-iu_firmware hikvision:ds-2cd2143g2-iu_firmware | all versions; all versions | NVD |
References
- https://www.hikvision.com/en/support/cybersecurity/security-advisory/security-notification-command-injection-vulnerability-in-some-hikvision-products/x-refsource-misc, vendor-advisory
- http://packetstormsecurity.com/files/164603/Hikvision-Web-Server-Build-210702-Command-Injection.htmlx-refsource-misc, exploit, third-party-advisory, vdb-entry
- http://packetstormsecurity.com/files/166167/Hikvision-IP-Camera-Unauthenticated-Command-Injection.htmlx-refsource-misc, exploit, third-party-advisory, vdb-entry
- https://www.cyfirma.com/wp-content/uploads/2022/08/HikvisionSurveillanceCamerasVulnerabilities.pdfx-refsource-misc, broken-link, exploit, third-party-advisory
- https://therecord.media/experts-warn-of-widespread-exploitation-involving-hikvision-cameras/x-refsource-misc, third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-36260us-government-resource
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The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.