How severe is CVE-2002-2140?

CVE-2002-2140 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2002-2140 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-2140?

CVE-2002-2140 primarily affects Cisco Pix Firewall Software. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2002-2140?

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

When was CVE-2002-2140 published?

CVE-2002-2140 was published on 2002-12-31 and last updated on 2026-06-16.

CVE-2002-2140

CVE-2002-2140 is a medium-severity vulnerability in Cisco Pix Firewall Software 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% (78th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cisco Pix Firewall Software
Published: 2002-12-31
Last modified: 2026-06-16

Description

Buffer overflow in Cisco PIX Firewall 5.2.x to 5.2.8, 6.0.x to 6.0.3, 6.1.x to 6.1.3, and 6.2.x to 6.2.1 allows remote attackers to cause a denial of service via HTTP traffic authentication using (1) TACACS+ or (2) RADIUS.

Frequently asked questions

What is CVE-2002-2140?: Buffer overflow in Cisco PIX Firewall 5.2.x to 5.2.8, 6.0.x to 6.0.3, 6.1.x to 6.1.3, and 6.2.x to 6.2.1 allows remote attackers to cause a denial of service via HTTP traffic authentication using (1) TACACS+ or (2) RADIUS.
How severe is CVE-2002-2140?: CVE-2002-2140 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2002-2140 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-2140?: CVE-2002-2140 primarily affects Cisco Pix Firewall Software. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-2140?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-2140 published?: CVE-2002-2140 was published on 2002-12-31 and last updated on 2026-06-16.

References

Affected products (19)

cpe:2.3:o:cisco:pix_firewall_software:5.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.2\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.2\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.2\(3\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.2\(4\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.2\(5\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.2\(6\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.2\(7\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.2\(8\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.0:*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.0\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.0\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.0\(3\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.1\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.1\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.1\(3\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.2\(1\):*:*:*:*:*:*:*

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