How severe is CVE-2001-0421?

CVE-2001-0421 has a CVSS 2.0 base score of 6.4, rated medium severity.

Is CVE-2001-0421 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0421?

CVE-2001-0421 primarily affects Sun Solaris. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2001-0421?

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

When was CVE-2001-0421 published?

CVE-2001-0421 was published on 2001-07-02 and last updated on 2026-06-16.

CVE-2001-0421

CVE-2001-0421 is a medium-severity vulnerability in Sun Solaris with a CVSS 2.0 base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 6.4)
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Sun Solaris
Published: 2001-07-02
Last modified: 2026-06-16

Description

FTP server in Solaris 8 and earlier allows local and remote attackers to cause a core dump in the root directory, possibly with world-readable permissions, by providing a valid username with an invalid password followed by a CWD ~ command, which could release sensitive information such as shadowed passwords, or fill the disk partition.

Frequently asked questions

What is CVE-2001-0421?: FTP server in Solaris 8 and earlier allows local and remote attackers to cause a core dump in the root directory, possibly with world-readable permissions, by providing a valid username with an invalid password followed by a CWD ~ command, which could release sensitive information such as shadowed passwords, or fill the disk partition.
How severe is CVE-2001-0421?: CVE-2001-0421 has a CVSS 2.0 base score of 6.4, rated medium severity.
Is CVE-2001-0421 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0421?: CVE-2001-0421 primarily affects Sun Solaris. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2001-0421?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2001-0421 published?: CVE-2001-0421 was published on 2001-07-02 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:o:sun:solaris:2.6:*:*:*:*:*:*:*
cpe:2.3:o:sun:sunos:*:*:*:*:*:*:*:*

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