How severe is CVE-2001-1539?

CVE-2001-1539 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2001-1539 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-1539?

CVE-2001-1539 affects Microsoft Internet Explorer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2001-1539?

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

When was CVE-2001-1539 published?

CVE-2001-1539 was published on 2001-12-31 and last updated on 2026-06-16.

CVE-2001-1539

CVE-2001-1539 is a medium-severity vulnerability in Microsoft Internet Explorer with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Microsoft Internet Explorer
Published: 2001-12-31
Last modified: 2026-06-16

Description

Stack consumption vulnerability in Internet Explorer The JavaScript settimeout function in Internet Explorer allows remote attackers to cause a denial of service (crash) via the JavaScript settimeout function. NOTE: the vendor could not reproduce the problem.

Frequently asked questions

What is CVE-2001-1539?: Stack consumption vulnerability in Internet Explorer The JavaScript settimeout function in Internet Explorer allows remote attackers to cause a denial of service (crash) via the JavaScript settimeout function. NOTE: the vendor could not reproduce the problem.
How severe is CVE-2001-1539?: CVE-2001-1539 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2001-1539 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-1539?: CVE-2001-1539 affects Microsoft Internet Explorer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-1539?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2001-1539 published?: CVE-2001-1539 was published on 2001-12-31 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:microsoft:internet_explorer:6.0.2900:*:*:*:*:*:*:*

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