Is CVE-2014-1266 in the CISA KEV catalog?

No. CVE-2014-1266 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-1266?

CVE-2014-1266 has a CVSS v3 base score of 7.4 (HIGH).

What is the EPSS score for CVE-2014-1266?

CVE-2014-1266 has an EPSS score of 5.71% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2014-1266?

Upgrade iphone os to 7.0.6 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2014-1266

HIGHEPSS 92th pctl

7.4

CVSS v3

NVD

Description

The SSLVerifySignedServerKeyExchange function in libsecurity_ssl/lib/sslKeyExchange.c in the Secure Transport feature in the Data Security component in Apple iOS 6.x before 6.1.6 and 7.x before 7.0.6, Apple TV 6.x before 6.0.2, and Apple OS X 10.9.x before 10.9.2 does not check the signature in a TLS Server Key Exchange message, which allows man-in-the-middle attackers to spoof SSL servers by (1) using an arbitrary private key for the signing step or (2) omitting the signing step.

CWE-295Improper Certificate Validation

How to fix

Remediation Available

iphone osNVD

Affected:>= 7.0, < 7.0.6Fixed in:7.0.6CVE-2014-1266derived from NVD

mac os xNVD

Affected:>= 10.9, < 10.9.2Fixed in:10.9.2CVE-2014-1266derived from NVD

tvosNVD

Affected:>= 6.0, < 6.0.2Fixed in:6.0.2CVE-2014-1266derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

5.71%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Exploit4

Vendor Advisory4

Issue Tracking1

it.slashdot.org

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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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 2026-04-29.