CVE-2001-0815

Exp

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.

Published: 2001-12-06 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2001-0815 is rated High Exploit Risk (73.9/100): CVSS High severity, with high exploitation likelihood (EPSS 35.93%, 97th percentile). 5 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2001-0815

EDB-ID Source Kind Published Link
21153 exploit_db edb 2001-11-15 Exploit-DB ↗
21154 exploit_db edb 2001-11-15 Exploit-DB ↗
21152 exploit_db edb 2001-11-15 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2001-0815

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-09-29 42.27% 35.93% -6.34%
2 2025-07-25 40.91% 42.27% +1.37%
3 2025-05-26 — 40.91% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-0815

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2001-0815

Affected software / configurations for CVE-2001-0815

Vendor Product Version Raw CPE
activestate activeperl <= 5.6.1.629 cpe:2.3:a:activestate:activeperl:*:*:*:*:*:*:*:*

References for CVE-2001-0815

cvelogic Threat Intelligence