How severe is CVE-2022-48503?

CVE-2022-48503 has a CVSS 3.1 base score of 8.8 (HIGH). EPSS estimates a 3.2% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2022-48503: Apple Multiple Products Unspecified Vulnerability

CISA Known Exploited Vulnerabilities

Apple Multiple Products Unspecified Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2025-10-20

Remediation due

2025-11-10

Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA notes
https://support.apple.com/en-us/HT213340 ; https://support.apple.com/en-us/HT213341 ; https://support.apple.com/en-us/HT213342 ; https://support.apple.com/en-us/HT213345 ; https://support.apple.com/en-us/HT213346 ; https://nvd.nist.gov/vuln/detail/CVE-2022-48503

Description

The issue was addressed with improved bounds checks. This issue is fixed in tvOS 15.6, watchOS 8.7, iOS 15.6 and iPadOS 15.6, macOS Monterey 12.5, Safari 15.6. Processing web content may lead to arbitrary code execution.

Severity

CVSS 3.1 · CISA8.8 HIGH

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

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Exploitation Context

as of October 14, 2026

All KEV statistics→

CISA added CVE-2022-48503 to the KEV catalog 798 days after its CVE record was published. The median for entries added in 2025 is 26 days.
It is one of 95 Apple entries in the CISA KEV catalog, and one of 9 added in 2025.
Its current EPSS score (3.2%) is higher than that of 13% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
Apple	Apple macOS	unspecified to <12.5
Apple	Apple tvOS	unspecified to <15.6
Apple	Apple Safari	unspecified to <15.6
Apple	Apple watchOS	unspecified to <8.7
Apple	Apple iOS and iPadOS	unspecified to <15.6

References

5 Links

Other references

Record Details

Published

2023-08-14

Last updated

2025-10-21

Assigner (CNA)

apple

Credited to

More from Apple

All Apple CVEs→

CVE-2021-308607.8 HIGH

Apple Multiple Products Integer Overflow Vulnerability

AppleKEVEPSS 76.0%2021-08-24

CVE-2023-324347.8 HIGH

Apple Multiple Products Integer Overflow Vulnerability

AppleKEVEPSS 51.5%2023-06-23

CVE-2021-308077.8 HIGH

Apple Multiple Products Memory Corruption Vulnerability

AppleKEVEPSS 28.8%2021-10-19

CVE-2023-282058.8 HIGH

Apple Multiple Products WebKit Use-After-Free Vulnerability

AppleKEVEPSS 27.1%2023-04-10

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.