How severe is CVE-2003-1003?

CVE-2003-1003 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2003-1003 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2003-1003?

CVE-2003-1003 primarily affects Cisco Pix Firewall. In total, 38 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2003-1003?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2003-1003 published?

CVE-2003-1003 was published on 2004-01-05 and last updated on 2026-06-16.

CVE-2003-1003

CVE-2003-1003 is a high-severity vulnerability in Cisco Pix Firewall with a CVSS 2.0 base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Pix Firewall
Published: 2004-01-05
Last modified: 2026-06-16

Description

Cisco PIX firewall 5.x.x, and 6.3.1 and earlier, allows remote attackers to cause a denial of service (crash and reload) via an SNMPv3 message when snmp-server is set.

Frequently asked questions

What is CVE-2003-1003?: Cisco PIX firewall 5.x.x, and 6.3.1 and earlier, allows remote attackers to cause a denial of service (crash and reload) via an SNMPv3 message when snmp-server is set.
How severe is CVE-2003-1003?: CVE-2003-1003 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2003-1003 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-1003?: CVE-2003-1003 primarily affects Cisco Pix Firewall. In total, 38 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-1003?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2003-1003 published?: CVE-2003-1003 was published on 2004-01-05 and last updated on 2026-06-16.

References

http://www.cisco.com/warp/public/707/cisco-sa-20031215-pix.shtml

Affected products (38)

cpe:2.3:a:cisco:pix_firewall:6.2.2_.111:*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.0:*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.1\(4\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.1\(4.206\):*:*:*:*:*:*:*
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\(3.210\):*:*:*:*:*:*:*
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\(9\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.3\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.3\(1.200\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.3\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:5.3\(3\):*:*:*:*:*:*:*
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:6.0\(4\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.0\(4.101\):*:*:*:*:*:*:*
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:6.1\(4\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.1\(5\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.2\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.2\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.2\(3\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.2\(3.100\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.3\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:pix_firewall_software:6.3\(3.102\):*:*:*:*:*:*:*

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