How severe is CVE-2000-0486?

CVE-2000-0486 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2000-0486 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-0486?

CVE-2000-0486 primarily affects Cisco Tacacs+. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2000-0486?

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

When was CVE-2000-0486 published?

CVE-2000-0486 was published on 2000-05-30 and last updated on 2026-06-16.

CVE-2000-0486

CVE-2000-0486 is a medium-severity vulnerability in Cisco Tacacs+ 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% (79th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cisco Tacacs+
Published: 2000-05-30
Last modified: 2026-06-16

Description

Buffer overflow in Cisco TACACS+ tac_plus server allows remote attackers to cause a denial of service via a malformed packet with a long length field.

Frequently asked questions

What is CVE-2000-0486?: Buffer overflow in Cisco TACACS+ tac_plus server allows remote attackers to cause a denial of service via a malformed packet with a long length field.
How severe is CVE-2000-0486?: CVE-2000-0486 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2000-0486 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0486?: CVE-2000-0486 primarily affects Cisco Tacacs+. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2000-0486?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2000-0486 published?: CVE-2000-0486 was published on 2000-05-30 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:tacacs\+:f4.0.2alpha:*:*:*:*:*:*:*
cpe:2.3:a:cisco:tacacs\+:f4.0.3alpha:*:*:*:*:*:*:*

More vulnerabilities in Cisco Tacacs+

CVE-2002-0225 — Medium (CVSS 4.6): tac_plus Tacacs+ daemon F4.0.4.alpha, originally maintained by Cisco, creates files from the accounting directive with…

All CVEs affecting Cisco Tacacs+ →