Suspected state-sponsored hackers exploited NetScaler zero-day since early September (CVE-2026-88772)

“Advanced and suspected state-sponsored threat actors” are likely to be behind the initial targeted intrusions that leveraged CVE-2026-88772, one of the two recently disclosed NetScaler vulnerabilities that have been exploited as zero-days, says Mandiant CTO Charles Carmakal. Mandiant and Google Threat Intelligence Group (GTIG) know of dozens of impacted organizations across North America and…

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