GreyNoise identified a surge in scanning and exploitation attempts against Hikvision surveillance devices in Ukraine between September 21 and October 1, 2026, with exploitation concentrated in a nine-day period beginning September 23. Most attempts targeted CVE-2021-36260, a critical unauthenticated command-injection vulnerability with a CVSS score of 9.8. Three PureVPN exit nodes and one Ukrainian domestic IP address generated almost all observed attempts; none attempted exploitation against GreyNoise sensors outside Ukraine. Whether the addresses shared a common operator remains unknown.
All recorded requests from the four addresses used the same command-execution test from a public Nuclei template, without an installation payload. The observations do not confirm device compromise, malware installation, or access to video feeds. Although the activity coincided with intensified Russian missile and drone strikes, researchers established neither a connection nor attribution to Russian actors. Organizations operating Hikvision equipment should apply firmware updates, restrict internet exposure, and isolate surveillance devices from critical networks.

See which actors are running it and whether you're in range.
5 events from the most recent confirmed update back to the earliest known activity.
GreyNoise recorded the last exploitation attempts from the four identified source addresses on October 1. No further attempts from those addresses had been recorded through October 7.
Attempts targeting CVE-2021-36260 rose sharply from near zero, beginning a nine-day surge largely originating from three PureVPN exit nodes and one Ukrainian IP address. Requests used the public Nuclei remote-command-execution template with an identical command test and no installation payload; the observations did not confirm device compromise.
GreyNoise observed an IP address on a domestic Ukrainian network attempting connections to service ports in Ukraine without sending an exploit. The address subsequently became one of four sources responsible for almost all observed exploitation attempts.
Ukrainian authorities reported disabling two cameras that Russian intelligence had compromised to observe Kyiv’s air defenses and infrastructure. This incident does not establish attribution for the later exploitation attempts.
Cybersecurity News reported more than 80,000 exposed Hikvision cameras vulnerable to exploitation. The figure describes exposure reported in 2022, not the number of vulnerable devices during the 2026 campaign.
Vulnerabilities, threat actors, malware, products, organizations, breaches, and observables Mallory has linked to this story. Indicator values are masked here and available in full in the app.
Indicator values are masked on this page. See the values in Mallory Domains, IPs, hashes, and URLs are exportable to your SIEM.
Correlate live exploitation activity against the software you actually run, and see where you're exposed.
2 references tracked. Mallory keeps watching after this page renders.
Map indicators from this story to your assets and identify affected systems in minutes.
Every observed campaign, victim, and pivot linked to actors named in this story.
Malware, exploits, and IOCs connected to the activity described here.
YARA, Sigma, and Snort rules deployed to your SIEM as soon as they’re published.
Get matching new stories delivered to your team as they break — not the next morning.
Ask questions about this story and take action on the answers.