Is CVE-2022-48503 in the CISA KEV catalog?

Yes. CVE-2022-48503 is on the CISA Known Exploited Vulnerabilities list, added 2025-10-20.

What is the CVSS severity of CVE-2022-48503?

CVE-2022-48503 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2022-48503?

CVE-2022-48503 has an EPSS score of 3.12% (86th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2022-48503

HIGHCISA KEVEPSS 86th pctl

8.8

CVSS v3

NVD

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.

CWE-129

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

3.12%probability of exploitation in 30 days

86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Apple Multiple Products Unspecified Vulnerability

Apple macOS, iOS, tvOS, Safari, and watchOS contain an unspecified vulnerability in JavaScriptCore that when processing web content may lead to arbitrary code execution. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

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

Remediation due: 2025-11-10

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-23.