Is CVE-2024-23273 in the CISA KEV catalog?

No. CVE-2024-23273 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-23273?

CVE-2024-23273 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2024-23273?

CVE-2024-23273 has an EPSS score of 0.73% (50th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-23273?

Upgrade Safari to 17.4 or later.

CVE & CISA-KEV Catalog

CVE-2024-23273

MEDIUM

4.3

CVSS v3

NVD

Description

This issue was addressed through improved state management. This issue is fixed in Safari 17.4, iOS 17.4 and iPadOS 17.4, macOS Sonoma 14.4. Private Browsing tabs may be accessed without authentication.

CWE-295Improper Certificate Validation

How to fix

Remediation Available

SafariWindows application

Affected:17.4Fixed in:17.4Apple Inc.

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.73%probability of exploitation in 30 days

50thpercentile

Moderate risk: more likely to be exploited than 50% of all known CVEs.

References

Vendor Advisory3

Mailing List2

Other references6

Related Vulnerabilities

Other CWE-295 (Improper Certificate Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-4000	Low	3.7	100%	-	Fix
CVE-2020-0601	High	8.1	89%	KEV	Fix
CVE-2009-3555	Critical	9.8	87%	-	Fix
CVE-2022-26923	High	8.8	83%	KEV	Fix
CVE-2023-27823	Critical	9.8	53%	-	-
CVE-2022-42979	High	8.8	24%	-	-

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Markdown

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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 2026-04-02.