How severe is CVE-2013-1451?

CVE-2013-1451 has a CVSS 2.0 base score of 4.0, rated medium severity.

Is CVE-2013-1451 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-1451?

CVE-2013-1451 primarily affects Microsoft Internet Explorer. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-1451?

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

When was CVE-2013-1451 published?

CVE-2013-1451 was published on 2013-01-29 and last updated on 2026-06-16.

CVE-2013-1451

CVE-2013-1451 is a medium-severity vulnerability in Microsoft Internet Explorer with a CVSS 2.0 base score of 4.0. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-16.

Key facts

Severity: Medium (CVSS 2.0 base score 4.0)
EPSS exploit prediction: 20% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-16
Affected product: Microsoft Internet Explorer
Published: 2013-01-29
Last modified: 2026-06-16

Description

Microsoft Internet Explorer 8 and 9, when the Proxy Settings configuration has the same Proxy address and Port values in the HTTP and Secure rows, does not ensure that the SSL lock icon is consistent with the Address bar, which makes it easier for remote attackers to spoof web sites via a crafted HTML document that triggers many HTTPS requests to an arbitrary host, followed by an HTTPS request to a trusted host and then an HTTP request to an untrusted host, a related issue to CVE-2013-1450.

Frequently asked questions

What is CVE-2013-1451?: Microsoft Internet Explorer 8 and 9, when the Proxy Settings configuration has the same Proxy address and Port values in the HTTP and Secure rows, does not ensure that the SSL lock icon is consistent with the Address bar, which makes it easier for remote attackers to spoof web sites via a crafted HTML document that triggers many HTTPS requests to an arbitrary host, followed by an HTTPS request to a trusted host and then an HTTP request to an untrusted host, a related issue to CVE-2013-1450.
How severe is CVE-2013-1451?: CVE-2013-1451 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2013-1451 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-1451?: CVE-2013-1451 primarily affects Microsoft Internet Explorer. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-1451?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-1451 published?: CVE-2013-1451 was published on 2013-01-29 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:microsoft:internet_explorer:8:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*

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