Apple Releases AirPort Extreme and Time Capsule Firmware Update 7.7.3 With Heartbleed Fix - MacRumors
Skip to Content

Apple Releases AirPort Extreme and Time Capsule Firmware Update 7.7.3 With Heartbleed Fix

by

airport_utility_iconApple today released AirPort Extreme and AirPort Time Capsule Firmware Update 7.7.3 for AirPorts with 802.11ac. The update includes security improvements related to SSL/TLS.

AirPort Base Station Firmware Update 7.7.3
Available for: AirPort Extreme and AirPort Time Capsule base stations with 802.11ac

Impact: An attacker in a privileged network position may obtain memory contents

Description: An out-of-bounds read issue existed in the OpenSSL library when handling TLS heartbeat extension packets. An attacker in a privileged network position could obtain information from process memory. This issue was addressed through additional bounds checking. Only AirPort Extreme and AirPort Time Capsule base stations with 802.11ac are affected, and only if they have Back to My Mac or Send Diagnostics enabled. Other AirPort base stations are not impacted by this issue.

Earlier this month, an OpenSSL bug known as Heartbleed made headlines, with Apple releasing a statement noting that iOS, OS X, and its "key web services" were unaffected by the security flaw, but it appears that the company's AirPort Extreme and AirPort Time Capsule were vulnerable.

The 7.7.3 update is recommended for all models of the AirPort Extreme and Time Capsule that support 802.11ac Wi-Fi, other AirPort base stations do not need to be updated.

Related Forum: Networking

Popular Stories

Apple Event Logo

Apple Just Released a New Accessory

Monday May 4, 2026 8:13 am PDT by
Apple today released a new Pride Edition Sport Loop for the Apple Watch. The band features a rainbow design with 11 colors of woven nylon yarns. The new Pride Edition Sport Loop is available to order now on Apple.com and in the Apple Store app in 40mm, 42mm, and 46mm sizes, and it will be available at Apple Store locations starting later this week. In the U.S., the band costs $49. There...
Read Full Article
iOS 26

Apple Says iOS 26.5 Adds Three New Features to Your iPhone

Tuesday May 5, 2026 7:36 am PDT by
iOS 26.5 includes three new features for iPhones, according to Apple's release notes for the update, which is expected to be released next week. As discovered during beta testing, iOS 26.5 enables end-to-end encryption for RCS messaging between iOS and Android devices. Apple says this security upgrade is limited to supported carriers around the world and will continue to roll out....
Read Full Article • 27 comments
Instagram Feature 2

PSA: Instagram Encrypted Messaging Ends on Friday, May 8

Tuesday May 5, 2026 8:24 am PDT by
Instagram will remove end-to-end encryption for direct messages between users from May 8, 2026. When the date comes around, Meta will potentially be able to see the contents of all messages between users on the social media platform. Encrypting messages has been an optional feature in Instagram since 2023, but in March of this year the social media platform quietly updated a help page to say ...
Read Full Article • 54 comments

Top Rated Comments

I
iNosey
157 months ago
Hmm airport express not affected?
Let me let you answer that. Does the AirPort Express use 802.11ac? No. Do you even read the article?
Score: 7 Votes (Like | Disagree)
C
coolfactor
157 months ago
"APPLE SUX! HAHAHAHA"

No, seriously, I wonder how many other routers out there are vulnerable to this and yet will never receive firmware updates because they are too difficult to install, unlike Airport routers?

I wonder if this vulnerability is unique to Airport routers because of the Back to the Mac feature that requires user credentials to stored in order to operate correctly?
Score: 6 Votes (Like | Disagree)
PsyOpWarlord Avatar
PsyOpWarlord
157 months ago
This is something I was also wondering, I just checked and their does not seem to be any updates for them. Hopefully they are not affected.
Did you read the article?

Only AirPort Extreme and AirPort Time Capsule base stations with 802.11ac are affected, and only if they have Back to My Mac or Send Diagnostics enabled. Other AirPort base stations are not impacted by this issue.
Score: 5 Votes (Like | Disagree)
R
Ralf The Dog
157 months ago
well what do you expect ?
more than a week to figure out that a product is linked with a faulty lib !!
Perhaps they don't read news :p
Good job Apple

Step 1, Find the bug.
Step 2, Fix the bug.
Step 3, Test the fix.
Step 4, Test the fix.
Step 5, Test the fix.
Step 6, Test the fix.
Step 7, Release the fix.
Score: 5 Votes (Like | Disagree)
C
csixty4
157 months ago
No. It's the SSL bug, which has nothing to do with AC vs N.

There's a good chance the firmware for 802.11n routers was never updated to use OpenSSL 1.0.1, which is where the "Heartbleed" bug was introduced. OpenSSL 0.98 and 1.0.0 were actively maintained in separate branches and had security patches back-ported. As long as the older routers didn't need the new features introduced in 1.0.1, it would be silly to upgrade the firmware just to upgrade.
Score: 4 Votes (Like | Disagree)
R
rudigern
157 months ago
There is nothing to test, because it has been tested ad nauseum by thousands of people worldwide.

You don't do software development do you. Firmware is especially fragile because if it doesn't work, you could have all your customers lined out the front of your store with bricked Airports.
Score: 4 Votes (Like | Disagree)
Read All Comments