Now-Fixed AirDrop Bug Let Anyone Lock-Up Nearby iPhones With Flood of Files

There was a serious AirDrop bug in iOS 13.2.3 that let attackers overwhelm nearby iPhones with files, causing them to lock up, reports TechCrunch. Apple addressed the bug in the iOS 13.3 update, and the details of how it works are now public.

AirDrop is designed to allow users to share files with one another, and depending on settings, it can be restricted to contacts, no one, or any nearby iPhone. Kishan Bagaria discovered the AirDrop bug in iOS 13.2.3, finding that he could lock up nearby iPhones that were able to accept files by flooding them with multiple files in a row.

airdropbug
When receiving an AirDrop file, an ‌iPhone‌ or iPad blocks the display until the incoming request is accepted or rejected. iOS did not limit the number of requests that a device can accept, so with repeated message requests, an attacker was able to send files over and over again to cause the iOS device to get stuck in a loop.

Devices with AirDrop set to "Everyone" were primarily vulnerable to the attack, which is not the default AirDrop setting. AirDrop is limited to Contacts, and the "Everyone" setting must be manually enabled.

As of now, though, the bug no longer works and Apple has limited the number of AirDrop messages that can be sent to an iOS device in quick succession. Given that this wasn't a traditional security vulnerability, Apple will not provide a common vulnerability and CVE score, but has instead acknowledged it in a separate section of the security support document.

Tag: AirDrop

Popular Stories

top stories 2025 12 20

Top Stories: iOS 26.3 Beta, Major Apple Leaks, and More

Saturday December 20, 2025 6:00 am PST by
You'd think things would be slowing down heading into the holidays, but this week saw a whirlwind of Apple leaks and rumors while Apple started its next cycle of betas following last week's release of iOS 26.2 and related updates. This week also saw the release of a new Apple Music integration with ChatGPT, so read on below for all the details on this week's biggest stories! Top Stories i...
iPhone Top Left Hole Punch Face ID Feature Purple

iPhone 18 Pro Features Leaked in New Report, Including Under-Screen Face ID

Tuesday December 16, 2025 8:44 am PST by
Next year's iPhone 18 Pro and iPhone 18 Pro Max will be equipped with under-screen Face ID, and the front camera will be moved to the top-left corner of the screen, according to a new report from The Information's Wayne Ma and Qianer Liu. As a result of these changes, the report said the iPhone 18 Pro models will not have a pill-shaped Dynamic Island cutout at the top of the screen....
ios 18 security update

Don't Want to Upgrade to iOS 26? Here's How to Stay on iOS 18 [Update: Now Unavailable]

Friday December 19, 2025 10:37 am PST by
Since the beginning of December, Apple has been pushing iPhone users who opted to stay on iOS 18 to install iOS 26 instead. Apple started by making the iOS 18 upgrades less visible, and has now transitioned to making new iOS 18 updates unavailable on any device capable of running iOS 26. If you have an iPhone 11 or later, Apple is no longer offering new versions of iOS 18, even though there...
airpods pro 3 new blue

AirPods Pro 3's Static and Noise Issues Haven't Been Resolved

Thursday December 18, 2025 3:44 pm PST by
Since the AirPods Pro 3 launched, there have been complaints from users who have noticed a static-like sound or a crackling issue when using the earbuds, particularly when Active Noise Cancellation is on but no media is playing. Users have also run into strange high-pitched whistling sounds that happen intermittently. We shared the issues back in late October, and despite two subsequent...
apple music chatgpt

ChatGPT's Apple Music Integration Is Now Live

Wednesday December 17, 2025 3:50 pm PST by
There's now a dedicated Apple Music app for ChatGPT, which allows ChatGPT to make music recommendations and build playlists. Apple Music can be added to ChatGPT through the Settings section in the Mac app, website, or iOS app. Apple Music is listed under the apps option, and connecting to it requires signing in with your Apple Account for authorization purposes. ChatGPT can be used to...
samsung exynos 2600 2nm%402x

Samsung Announces World's First 2nm Mobile Chip Ahead of Apple

Friday December 19, 2025 3:59 am PST by
Samsung has officially unveiled the Exynos 2600, the world's first 2 nanometer mobile system-on-a-chip (SoC), built on the company's Gate-All-Around (GAA) process. The 10-core ARM-based design aims to deliver improved performance and efficiency for flagship devices like the upcoming Galaxy S26 series. The chip uses Arm's latest cores and supports new instructions for improved CPU speed and...
apple beta 26 lineup

Apple's 2026 and 2027 Product Roadmap: Foldable iPhone, iPhone 18 Pro, M5 Macs, and More

Tuesday December 16, 2025 4:42 pm PST by
There has been a whirlwind of rumors over the last few days, sourced from leaked internal software designed for the iPhone and the Mac, and news sites like The Information. Below, we have a quick recap of everything we've heard this week, which serves as a guide to Apple's product plans in 2026 and beyond. We've organized the info by likely release date, though there are some products that...
iOS 26 Maps Glass

Apple Quietly Discontinued Flyover City Tours in Apple Maps

Thursday December 18, 2025 1:31 pm PST by
Apple Maps no longer offers a Flyover feature that provides users with automated tours of notable landmarks in major cities. The Flyover option appears to have been nixed around when iOS 26 launched, but its removal went largely unnoticed. Flyover city tours were introduced in 2014 with iOS 8 and OS X Yosemite, using Flyover imagery to generate an aerial tour. Most cities with Flyover...

Top Rated Comments

SVTmaniac Avatar
79 months ago
I don't know if I'd call it serious. More of an inconvenience if anything. First off you'd have to be dumb enough to leave your airdrop set to everyone and then someone would have to know about the bug to send files that basically annoy you more than anything. Not like they get data off your phone or cause it to brick.
Score: 5 Votes (Like | Disagree)
Nabby Avatar
79 months ago

Shoot now I can’t mess with people in public like I use to do
This is how my teenage son passes the time while waiting in pubic...He will look for "open" AirDrop iPhones and send a picture of a fish. He doesn't flood the phone, just sends it once, and then looks to see who might have noticed. He now has learned to change is phone name when someone saw the picture was from "Joe's iPhone" and called out "Joe" looking for who might respond.:)

It's amazing the number of people you find who have AirDrop wide open at a place like Disney. :rolleyes:
Score: 5 Votes (Like | Disagree)
Jimmy Bubbles Avatar
79 months ago
Looks like the old concept of IM-bombs hasn't died, only reincarnated. haha!
Score: 1 Votes (Like | Disagree)
MacBH928 Avatar
79 months ago
ahh...the old Windows 98 pop-up trick, strikes again.

Airdrop is great technology, I wish more people used it. I hardly hear anyone does especially that it is Apple only.
Score: 1 Votes (Like | Disagree)
roguedaemon Avatar
79 months ago
Here’s a suggestion; make the AirDrop dialogue more versatile.
It’s just that one popover layer that forces you to interact with it.
That’s ok I guess, But if you get sent multiple files, which one gets priority?

I propose a new dialog which appears at the top of the screen like a normal notification. Once interacted with, it would show you all incoming connections, what they are and whether you want to accept or reject each transfer. More complicated but I think if done in the Apple way would be simple and useable.

What do you lads and ladies think?
Score: 1 Votes (Like | Disagree)
DeepIn2U Avatar
79 months ago

Shoot now I can’t mess with people in public like I use to do
LOL ... reminds me of 'bluetooth wardriving' way back in 2002. Go Transit .... key up a message on my Ericsson "Evening ... if you receive this message bring it to the driver for a month of free travel anywhere in the GTA" LMAO ... some cat in 1mins jump up and spoke to the driver for a lengthy 20mins LMAO! Nowadays kids would fled you with eggplant emoji (yet not the vegetable nor the emoji) :( fine lines between tom foolery vs harassment.
Score: 1 Votes (Like | Disagree)