Apple Quietly Fixed Zero-Day Exploit Used in Paragon Spyware Attack

Apple today quietly updated the list of security fixes that were introduced in iOS 18.3.1, noting a previously undisclosed fix for a zero-day vulnerability affecting the Messages app.

bug security vulnerability issue fix larry
Apple acknowledged the fix after security researchers from The Citizen Lab shared details on the flaw, which had been used to target two European journalists. The Messages vulnerability was exploited with the "Graphite" mercenary spyware created by Paragon. Paragon's spyware has been used in targeted attacks against journalists and human rights activists across multiple platforms.

According to Apple, a maliciously crafted photo or video shared through an iCloud link led to a logic issue that allowed for the infiltration of targeted devices. Apple's release notes say that it "is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals."

Apple confirmed to The Citizen Lab that it fixed the vulnerability back when iOS 18.3.1 was released in February, but it is not clear why Apple did not disclose it before today.

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Top Rated Comments

aloysiusfreeman Avatar
12 weeks ago
Great to see a US-backed company working on surveilling journalists and activists.

Can't wait to see the feds using this on us
Score: 6 Votes (Like | Disagree)
russell_314 Avatar
12 weeks ago

Great to see a US-backed company working on surveilling journalists and activists.

Can't wait to see the feds using this on us
Nothing new. The US government has been using private companies and NGO’s for years or likely decades to do their dirty work. The US government might not be allowed to censor or spy on citizens, but they can have a private organization do it for them.
Score: 6 Votes (Like | Disagree)
Plutonius Avatar
12 weeks ago
It's good to see that Apple addressed this exploit. Unfortunately, the next exploit will probably hit soon if it already hasn't :(.
Score: 5 Votes (Like | Disagree)
ThailandToo Avatar
12 weeks ago

Nothing new. The US government has been using private companies and NGO’s for years or likely decades to do their dirty work. The US government might not be allowed to censor or spy on citizens, but they can have a private organization do it for them.
Just like Apple. I am sure Snowden didn’t make everything up. I also believe the Bloomberg report about China installing chips on Apple’s servers was probably legitimate; why would Apple admit to it? Their whole business model is made in China with slave labor. Funny thing is people believe the marketing hype about Apple caring about our privacy - AAPL cares about the illusion of our privacy.
Score: 3 Votes (Like | Disagree)
Mousse Avatar
11 weeks ago

Much of the above seems like a gross generalization. Who determines a fair and equitable salary for employees? Certainly not MR posters.
Not who, but what. Productivity determines what is fair and equitable.
MacRumors content image
MacRumors content image
As you can see, compensation hasn't matched productivity since the 70's.
Score: 3 Votes (Like | Disagree)
russell_314 Avatar
12 weeks ago

More likely trying to not create a new news cycle about the original exploit. They fixed the issue but left it out of the release notes initially, because of course people are going to be looking at those release notes when an update is brand new. Then once most people have the update and interest has died down, update them so it's on record in case anyone says "there was this exploit and Apple never patched it".
Every time I’ve seen Apple release updates for security patches they never describe the actual security flaw. So I guess Apple always “quietly” updates their security vulnerabilities ?




Just like Apple. I am sure Snowden didn’t make everything up. I also believe the Bloomberg report about China installing chips on Apple’s servers was probably legitimate; why would Apple admit to it?
You’re absolutely right it would not benefit Apple to admit they had a security breach, but if they know customer data has been breached they have to tell people. This is written into law from my understanding.



Their whole business model is made in China with slave labor. Funny thing is people believe the marketing hype about Apple caring about our privacy - AAPL cares about the illusion of our privacy.
You just described every product you buy in 2025. At least products sold in the USA. Everything you’re wearing was probably made the way you describe. Most of your gadgets in your home were made that way. Likely just about everything you own was made that way. Unfortunately that’s a terrible fact of how things are going now, but it’s not exclusive to Apple. It’s either made in China or a similar country with similar working conditions. In some cases products are made outside of China because China is too strict about working conditions compared to those countries.
Score: 3 Votes (Like | Disagree)