How severe is CVE-2001-0723?

CVE-2001-0723 has a CVSS 2.0 base score of 6.4, rated medium severity.

Is CVE-2001-0723 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0723?

CVE-2001-0723 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-2001-0723?

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

When was CVE-2001-0723 published?

CVE-2001-0723 was published on 2001-11-14 and last updated on 2026-06-16.

CVE-2001-0723

CVE-2001-0723 is a medium-severity vulnerability in Microsoft Internet Explorer with a CVSS 2.0 base score of 6.4. Its EPSS exploit-prediction score of 11% places it in the 95th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Medium (CVSS 2.0 base score 6.4)
EPSS exploit prediction: 11% (95th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Internet Explorer
Published: 2001-11-14
Last modified: 2026-06-16

Description

Internet Explorer 5.5 and 6.0 allows remote attackers to read and modify user cookies via Javascript, aka the "Second Cookie Handling Vulnerability."

Frequently asked questions

What is CVE-2001-0723?: Internet Explorer 5.5 and 6.0 allows remote attackers to read and modify user cookies via Javascript, aka the "Second Cookie Handling Vulnerability."
How severe is CVE-2001-0723?: CVE-2001-0723 has a CVSS 2.0 base score of 6.4, rated medium severity.
Is CVE-2001-0723 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0723?: CVE-2001-0723 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-2001-0723?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2001-0723 published?: CVE-2001-0723 was published on 2001-11-14 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:microsoft:internet_explorer:5.5:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:6.0:*:*:*:*:*:*:*

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