CVE-2001-0252

CVE-2001-0252 is a medium-severity vulnerability in Iplanet Iplanet Enterprise Server with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

iPlanet (formerly Netscape) Enterprise Server 4.1 allows remote attackers to cause a denial of service via a long HTTP GET request that contains many "/../" (dot dot) sequences.

Frequently asked questions

What is CVE-2001-0252?
iPlanet (formerly Netscape) Enterprise Server 4.1 allows remote attackers to cause a denial of service via a long HTTP GET request that contains many "/../" (dot dot) sequences.
How severe is CVE-2001-0252?
CVE-2001-0252 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2001-0252 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0252?
CVE-2001-0252 affects Iplanet Iplanet Enterprise Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-0252?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2001-0252 published?
CVE-2001-0252 was published on 2001-06-02 and last updated on 2026-06-16.

References

Affected products (1)