How severe is CVE-2014-2783?

CVE-2014-2783 has a CVSS 2.0 base score of 6.4, rated medium severity.

Is CVE-2014-2783 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-2783?

CVE-2014-2783 primarily affects Microsoft Internet Explorer. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-2783?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-2783 published?

CVE-2014-2783 was published on 2014-07-08 and last updated on 2026-06-17.

CVE-2014-2783

CVE-2014-2783 is a medium-severity vulnerability in Microsoft Internet Explorer with a CVSS 2.0 base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 2.0 base score 6.4)
EPSS exploit prediction: 9% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Microsoft Internet Explorer
Published: 2014-07-08
Last modified: 2026-06-17

Description

Microsoft Internet Explorer 7 through 11 does not prevent use of wildcard EV SSL certificates, which might allow remote attackers to spoof a trust level by leveraging improper issuance of a wildcard certificate by a recognized Certification Authority, aka "Extended Validation (EV) Certificate Security Feature Bypass Vulnerability."

Frequently asked questions

What is CVE-2014-2783?: Microsoft Internet Explorer 7 through 11 does not prevent use of wildcard EV SSL certificates, which might allow remote attackers to spoof a trust level by leveraging improper issuance of a wildcard certificate by a recognized Certification Authority, aka "Extended Validation (EV) Certificate Security Feature Bypass Vulnerability."
How severe is CVE-2014-2783?: CVE-2014-2783 has a CVSS 2.0 base score of 6.4, rated medium severity.
Is CVE-2014-2783 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-2783?: CVE-2014-2783 primarily affects Microsoft Internet Explorer. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-2783?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-2783 published?: CVE-2014-2783 was published on 2014-07-08 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:8:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:10:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:*

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