How severe is CVE-2000-0087?

CVE-2000-0087 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2000-0087 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-0087?

CVE-2000-0087 primarily affects Netscape Communicator. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2000-0087?

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

When was CVE-2000-0087 published?

CVE-2000-0087 was published on 2000-01-12 and last updated on 2026-06-16.

CVE-2000-0087

CVE-2000-0087 is a medium-severity vulnerability in Netscape Communicator 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: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Netscape Communicator
Published: 2000-01-12
Last modified: 2026-06-16

Description

Netscape Mail Notification (nsnotify) utility in Netscape Communicator uses IMAP without SSL, even if the user has set a preference for Communicator to use an SSL connection, allowing a remote attacker to sniff usernames and passwords in plaintext.

Frequently asked questions

What is CVE-2000-0087?: Netscape Mail Notification (nsnotify) utility in Netscape Communicator uses IMAP without SSL, even if the user has set a preference for Communicator to use an SSL connection, allowing a remote attacker to sniff usernames and passwords in plaintext.
How severe is CVE-2000-0087?: CVE-2000-0087 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2000-0087 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0087?: CVE-2000-0087 primarily affects Netscape Communicator. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2000-0087?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2000-0087 published?: CVE-2000-0087 was published on 2000-01-12 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:netscape:communicator:4.7:*:*:*:*:*:*:*
cpe:2.3:a:netscape:navigator:*:*:*:*:*:*:*:*

More vulnerabilities in Netscape Communicator

CVE-2002-2248 — Critical (CVSS 10.0): Buffer overflow in the sun.awt.windows.WDefaultFontCharset Java class implementation in Netscape 4.0 allows remote…
CVE-2002-0593 — High (CVSS 7.5): Buffer overflow in Netscape 6 and Mozilla 1.0 RC1 and earlier allows remote attackers to cause a denial of service…
CVE-2001-0596 — High (CVSS 7.5): Netscape Communicator before 4.77 allows remote attackers to execute arbitrary Javascript via a GIF image whose comment…
CVE-2000-1187 — High (CVSS 7.5): Buffer overflow in the HTML parser for Netscape 4.75 and earlier allows remote attackers to execute arbitrary commands…
CVE-2000-0711 — High (CVSS 7.5): Netscape Communicator does not properly prevent a ServerSocket object from being created by untrusted entities, which…
CVE-1999-1189 — High (CVSS 7.5): Buffer overflow in Netscape Navigator/Communicator 4.7 for Windows 95 and Windows 98 allows remote attackers to cause a…

All CVEs affecting Netscape Communicator →