How severe is CVE-2001-0815?

CVE-2001-0815 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2001-0815 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-2001-0815?

CVE-2001-0815 affects Activestate Activeperl. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2001-0815?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2001-0815 published?

CVE-2001-0815 was published on 2001-12-06 and last updated on 2026-06-16.

CVE-2001-0815

CVE-2001-0815 is a high-severity vulnerability in Activestate Activeperl with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Activestate Activeperl
Published: 2001-12-06
Last modified: 2026-06-16

Description

Buffer overflow in PerlIS.dll in Activestate ActivePerl 5.6.1.629 and earlier allows remote attackers to execute arbitrary code via an HTTP request for a long filename that ends in a .pl extension.

Frequently asked questions

What is CVE-2001-0815?: Buffer overflow in PerlIS.dll in Activestate ActivePerl 5.6.1.629 and earlier allows remote attackers to execute arbitrary code via an HTTP request for a long filename that ends in a .pl extension.
How severe is CVE-2001-0815?: CVE-2001-0815 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2001-0815 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-2001-0815?: CVE-2001-0815 affects Activestate Activeperl. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-0815?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2001-0815 published?: CVE-2001-0815 was published on 2001-12-06 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:activestate:activeperl:*:*:*:*:*:*:*:*

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