CVE-2023-27961

Name: CVE-2023-27961
Creator: NVD / NIST
Published: 2023-05-08T20:15:18.663+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2023-27961 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Multiple validation issues were addressed with improved input sanitization. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, iOS 15.7.4 and iPadOS 15.7.4, macOS Monterey 12.6.4, watchOS 9.4, macOS Big Sur 11.7.5. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

Multiple validation issues were addressed with improved input sanitization. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, iOS 15.7.4 and iPadOS 15.7.4, macOS Monterey 12.6.4, watchOS 9.4, macOS Big Sur 11.7.5. Importing a maliciously crafted calendar invitation may exfiltrate user information.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS Probability

0.24%

14.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Apple	Ipados	< 15.7.4
Apple	Ipados	>= 16.0, < 16.4
Apple	Iphone Os	< 15.7.4
Apple	Iphone Os	>= 16.0, < 16.4
Apple	Macos	>= 11.0, < 11.7.5
Apple	Macos	>= 12.0, < 12.6.4
Apple	Macos	>= 13.0, < 13.3
Apple	Watchos	< 9.4

References

https://support.apple.com/en-us/HT213670Vendor Advisory
https://support.apple.com/en-us/HT213673Vendor Advisory
https://support.apple.com/en-us/HT213675Vendor Advisory
https://support.apple.com/en-us/HT213676Vendor Advisory
https://support.apple.com/en-us/HT213677Vendor Advisory
https://support.apple.com/en-us/HT213678Vendor Advisory
https://support.apple.com/en-us/HT213670Vendor Advisory
https://support.apple.com/en-us/HT213673Vendor Advisory
https://support.apple.com/en-us/HT213675Vendor Advisory
https://support.apple.com/en-us/HT213676Vendor Advisory
https://support.apple.com/en-us/HT213677Vendor Advisory
https://support.apple.com/en-us/HT213678Vendor Advisory

Timeline

Published: May 8, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-27961?

How severe is CVE-2023-27961?

CVE-2023-27961 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2023-27961?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-27961?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST