“Processing a maliciously crafted PDF may lead to arbitrary code execution,” the note read.
“Apple is aware of a report that this issue may have been actively exploited.”
Apple also released WatchOS 7.6.2, MacOS Big Sur 11.6 and a security update forMacOS Catalinato address the vulnerability.
It urged all Apple users to immediately update theiroperating systems.
“As presently engineered, many chat apps have become an irresistible soft target.”
In July,researchers found evidenceof attempted or successful installations of Pegasus on 37phonesof activists, journalists and businesspeople.
All but three of the devices were iPhones.
Pegasus runs secretly on smartphones, providing insight into what their owners are doing.
Other companies provide similar software.
CEO Shalev Hulio co-founded the company in 2010.
NSO has been implicated in other hacks, including thehigh-profile hack of Amazon founder Jeff Bezosin 2018.
