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Yes. The Hikvision flaw behind this warning, CVE-2021-36260, is a command-injection vulnerability that could let a remote attacker take control of an affected camera. That does not mean every Hikvision camera or DVR is vulnerable: exposure depends on the exact device and firmware. CISA’s alert specifically discusses cameras; a researcher also reported some affected NVRs, but the available evidence does not establish that all DVRs are affected.
What CVE-2021-36260 does
CISA described the issue as command injection in Hikvision cameras that use a web-server service. Its September 28, 2021 alert says, “A remote attacker could exploit this vulnerability to take control of an affected device.” Read CISA’s alert.
Security researcher Watchful IP characterized the flaw as unauthenticated remote code execution in vulnerable device and firmware configurations. The researcher reported that access to the device’s HTTP(S) service was sufficient in the configurations tested, without authentication or user interaction. This is the researcher’s technical account, not a complete compatibility or exposure matrix for every model. Read Watchful IP’s report.
Which Hikvision devices may be affected?
Do not infer that every Hikvision product is vulnerable. CISA’s cited notice covers cameras; Watchful IP reported a broader set of camera families, older firmware, and some NVRs, while noting that its model and firmware checks were incomplete. NVRs and DVRs are different recorder types, and the sources do not establish that every DVR—or every recorder—is affected.
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Hikvision’s September 29, 2021 firmware guide says firmware dated earlier than 210628 is affected. Treat that as a screening clue from the guide, not a universal rule: the correct firmware and affected status depend on the exact model, hardware revision, region, and firmware package. See Hikvision’s update guide.
How to check and update your device
- Identify the device. Record its exact model, hardware revision, region, and installed firmware build or date. Use the device’s management interface or product label, and make sure you are checking the camera or recorder you actually intend to update.
- Find the matching official firmware. Use Hikvision support for your region and confirm that the package is explicitly compatible with the exact model and hardware revision. Do not rely on the 210628 date alone or install firmware intended for a different regional variant.
- Follow the manufacturer’s update instructions. Hikvision’s guide demonstrates a device-specific firmware update flow. Follow the instructions for your model and package, and verify the installed version afterward.
- Contact Hikvision support or your installer if compatibility is unclear. The cited sources do not provide one universal model-and-version list that can determine every device’s status.
CISA’s mitigation advice is to apply the latest firmware. The evidence supports firmware checking and updating as the remediation; it does not establish buying a replacement camera, recorder, or generic security device as the fix.
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What the warning does—and does not—establish
- Established: CISA warned that a remote attacker could take control of an affected camera, and recommended firmware updates.
- Configuration-dependent: Watchful IP reported unauthenticated remote code execution where the vulnerable device’s HTTP(S) service was accessible in the tested configurations.
- Not established: That every Hikvision camera, NVR, or DVR is vulnerable, or that every model and regional firmware version is covered by the same threshold.
- Not established: A prevalence or victim count. The cited sources provide no suitable statistic for how many devices were exposed or compromised.
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