CVE-2023-27961

Multiple validation issues were addressed with improved input sanitization. This issue is fixed...

5.5 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

0.24%Up 0.2 points since May 9, 2023

What each source reports

NVD Score used 5.5

Record: CVE-2023-27961
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness: CWE-20, CWE-1284
Updated: 2026-11-02

CVE List 5.5

Record: CVE-2023-27961
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness: CWE-1284
Updated: 2026-11-02

EUVDEUVD-2023-31687 5.5

Record: EUVD-2023-31687
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-cpgg-rjvm-32fx 5.5

Multiple validation issues were addressed with improved input sanitization. This issue is fixed...

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

Record: GHSA-cpgg-rjvm-32fx
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness: CWE-20, CWE-1284
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-27961 is a medium vulnerability (CVSS 5.5) in Apple Ipados, published May 8, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 14th percentile. No source names a fixed version.