How severe is CVE-2002-0121?

CVE-2002-0121 has a CVSS 2.0 base score of 2.1, rated low severity.

Is CVE-2002-0121 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-0121?

CVE-2002-0121 primarily affects Php. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2002-0121?

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

When was CVE-2002-0121 published?

CVE-2002-0121 was published on 2002-03-25 and last updated on 2026-06-16.

CVE-2002-0121

CVE-2002-0121 is a low-severity vulnerability in Php with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 2.0 base score 2.1)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Php
Published: 2002-03-25
Last modified: 2026-06-16

Description

PHP 4.0 through 4.1.1 stores session IDs in temporary files whose name contains the session ID, which allows local users to hijack web connections.

Frequently asked questions

What is CVE-2002-0121?: PHP 4.0 through 4.1.1 stores session IDs in temporary files whose name contains the session ID, which allows local users to hijack web connections.
How severe is CVE-2002-0121?: CVE-2002-0121 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-2002-0121 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-0121?: CVE-2002-0121 primarily affects Php. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-0121?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-0121 published?: CVE-2002-0121 was published on 2002-03-25 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:php:php:4.0.4:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.5:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.6:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.1.0:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.1.2:*:*:*:*:*:*:*

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