How severe is CVE-2000-0960?

CVE-2000-0960 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2000-0960 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-0960?

CVE-2000-0960 primarily affects Netscape Messaging Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2000-0960?

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

When was CVE-2000-0960 published?

CVE-2000-0960 was published on 2000-12-19 and last updated on 2026-06-16.

CVE-2000-0960

CVE-2000-0960 is a medium-severity vulnerability in Netscape Messaging 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

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Netscape Messaging Server
Published: 2000-12-19
Last modified: 2026-06-16

Description

The POP3 server in Netscape Messaging Server 4.15p1 generates different error messages for incorrect user names versus incorrect passwords, which allows remote attackers to determine valid users on the system and harvest email addresses for spam abuse.

Frequently asked questions

What is CVE-2000-0960?: The POP3 server in Netscape Messaging Server 4.15p1 generates different error messages for incorrect user names versus incorrect passwords, which allows remote attackers to determine valid users on the system and harvest email addresses for spam abuse.
How severe is CVE-2000-0960?: CVE-2000-0960 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2000-0960 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0960?: CVE-2000-0960 primarily affects Netscape Messaging Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2000-0960?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2000-0960 published?: CVE-2000-0960 was published on 2000-12-19 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:netscape:messaging_server:4.15:*:*:*:*:*:*:*
cpe:2.3:a:netscape:messaging_server:4.15:patch1:*:*:*:*:*:*
cpe:2.3:a:netscape:messaging_server:4.15:patch2:*:*:*:*:*:*

More vulnerabilities in Netscape Messaging Server

CVE-2000-0961 — Critical (CVSS 10.0): Buffer overflow in IMAP server in Netscape Messaging Server 4.15 Patch 2 allows local users to execute arbitrary…
CVE-1999-0005 — Critical (CVSS 10.0): Arbitrary command execution via IMAP buffer overflow in authenticate command.
CVE-1999-1532 — Medium (CVSS 5.0): Netscape Messaging Server 3.54, 3.55, and 3.6 allows a remote attacker to cause a denial of service (memory exhaustion)…
CVE-1999-0007 — Medium (CVSS 5.0): Information from SSL-encrypted sessions via PKCS #1.

All CVEs affecting Netscape Messaging Server →