Is CVE-2015-3750 in the CISA KEV catalog?

No. CVE-2015-3750 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-3750?

CVE-2015-3750 has a CVSS v2 base score of 6.4 (MEDIUM).

What is the EPSS score for CVE-2015-3750?

CVE-2015-3750 has an EPSS score of 1.94% (78th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-3750?

Upgrade Safari to 6.2.8 or later.

CVE & CISA-KEV Catalog

CVE-2015-3750

MEDIUMEPSS 78th pctl

6.4

CVSS v2

NVD

Description

WebKit in Apple Safari before 6.2.8, 7.x before 7.1.8, and 8.x before 8.0.8, as used in iOS before 8.4.1 and other products, does not enforce the HTTP Strict Transport Security (HSTS) protection mechanism for Content Security Policy (CSP) report requests, which allows man-in-the-middle attackers to obtain sensitive information by sniffing the network or spoof a report by modifying the client-server data stream.

CWE-254

How to fix

Remediation Available

SafariWindows application

Affected:6.0 6.2.8Fixed in:6.2.8Apple Inc.

Affected:7.0 7.1.8Fixed in:7.1.8Apple Inc.

Affected:8.0 8.0.8Fixed in:8.0.8Apple Inc.

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

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

1.94%probability of exploitation in 30 days

78thpercentile

Elevated risk: more likely to be exploited than 78% of all known CVEs.

References

Vendor Advisory4

Third-Party Advisory3

Related Vulnerabilities

Other CWE-254 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2016-0161	Medium	6.5	69%	-	-
CVE-2016-2296	Critical	9.4	64%	-	-
CVE-2015-1793	Medium	6.5	62%	-	Fix
CVE-2016-2118	High	7.5	37%	-	Fix
CVE-2016-3238	High	8.1	35%	-	-
CVE-2016-3198	Medium	6.5	32%	-	-

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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 2026-05-06.