How severe is CVE-2000-0064?

CVE-2000-0064 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2000-0064 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-0064?

CVE-2000-0064 affects Nortel Contivity. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2000-0064?

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

When was CVE-2000-0064 published?

CVE-2000-0064 was published on 2000-01-17 and last updated on 2026-06-16.

CVE-2000-0064

CVE-2000-0064 is a medium-severity vulnerability in Nortel Contivity 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% (67th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Nortel Contivity
Published: 2000-01-17
Last modified: 2026-06-16

Description

cgiproc CGI script in Nortel Contivity HTTP server allows remote attackers to cause a denial of service via a malformed URL that includes shell metacharacters.

Frequently asked questions

What is CVE-2000-0064?: cgiproc CGI script in Nortel Contivity HTTP server allows remote attackers to cause a denial of service via a malformed URL that includes shell metacharacters.
How severe is CVE-2000-0064?: CVE-2000-0064 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2000-0064 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0064?: CVE-2000-0064 affects Nortel Contivity. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2000-0064?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2000-0064 published?: CVE-2000-0064 was published on 2000-01-17 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:h:nortel:contivity:1.0:*:*:*:*:*:*:*

More vulnerabilities in Nortel Contivity

CVE-2007-2333 — Critical (CVSS 10.0): Nortel VPN Router (aka Contivity) 1000, 2000, 4000, and 5000 before 5_05.149, 5_05.3xx before 5_05.304, and 6.x before…
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CVE-2005-2579 — High (CVSS 7.2): Nortel Contivity VPN Client V05_01.030, when configuring a certificate to be used as authentication, does not properly…
CVE-2005-1802 — Medium (CVSS 5.0): Nortel VPN Router (aka Contivity) allows remote attackers to cause a denial of service (crash) via an IPsec IKE packet…
CVE-2004-1105 — Medium (CVSS 5.0): Nortel Networks Contivity VPN Client displays a different error message depending on whether the username is valid or…
CVE-2000-0063 — Medium (CVSS 5.0): cgiproc CGI script in Nortel Contivity HTTP server allows remote attackers to read arbitrary files by specifying the…

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