How severe is CVE-2022-48503?

CVE-2022-48503 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-48503 being actively exploited?

Yes. CVE-2022-48503 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-10-20, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2022-48503?

CVE-2022-48503 primarily affects Apple Safari. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-48503?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2022-48503 have an EU (EUVD) identifier?

Yes. CVE-2022-48503 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-51199. It is also flagged as exploited in the EUVD (since 2025-10-20).

When was CVE-2022-48503 published?

CVE-2022-48503 was published on 2023-08-14 and last updated on 2026-06-17.

CVE-2022-48503

CVE-2022-48503 is a high-severity vulnerability in Apple Safari with a CVSS 3.x base score of 8.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2025-10-20). The underlying weakness is classified as CWE-129.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2025-10-20)
EU (EUVD) id: EUVD-2022-51199
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2025-10-20)
Weakness: CWE-129
Affected product: Apple Safari
Published: 2023-08-14
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-48503?: 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.
How severe is CVE-2022-48503?: CVE-2022-48503 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-48503 being actively exploited?: Yes. CVE-2022-48503 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-10-20, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2022-48503?: CVE-2022-48503 primarily affects Apple Safari. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-48503?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2022-48503 have an EU (EUVD) identifier?: Yes. CVE-2022-48503 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-51199. It is also flagged as exploited in the EUVD (since 2025-10-20).
When was CVE-2022-48503 published?: CVE-2022-48503 was published on 2023-08-14 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

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