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Vulnerability record · CVE-2000-1022 · published 11 December 2000

CVE-2000-1022: Cisco pix firewall software vulnerability

Cisco · Pix Firewall Software

The mailguard feature in Cisco Secure PIX Firewall 5.2(2) and earlier does not properly restrict access to SMTP commands, which allows remote attackers to execute restricted commands by sending a DATA command before sending the restricted commands.

7.5 CVSS 2.0 High EPSS 7.1% · top 6.0%
7.5CVSS 2.0 base score
7.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

The mailguard feature in Cisco Secure PIX Firewall 5.2(2) and earlier does not properly restrict access to SMTP commands, which allows remote attackers to execute restricted commands by sending a DATA command before sending the restricted commands.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.neohapsis.com/archives/bugtraq/2000-09/0222.html
http://archives.neohapsis.com/archives/bugtraq/2000-09/0241.html
http://www.cisco.com/warp/public/707/PIXfirewallSMTPfilter-pub.shtml
http://www.securityfocus.com/bid/1698 ExploitPatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/5277
http://archives.neohapsis.com/archives/bugtraq/2000-09/0222.html
http://archives.neohapsis.com/archives/bugtraq/2000-09/0241.html
http://www.cisco.com/warp/public/707/PIXfirewallSMTPfilter-pub.shtml
http://www.securityfocus.com/bid/1698 ExploitPatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/5277

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2016-6366Cisco ASA SNMP buffer overflow allows remote code executionCisco ASA, PIX and FWSM software through 9.4.2.3 contains a classic buffer overflow (CWE-120) reachable through crafted IPv4 SNMP packets. A remote a…KEVEPSS 88%analysed9.0CVE-2007-0960Cisco asa 5500 vulnerabilityUnspecified vulnerability in Cisco PIX 500 and ASA 5500 Series Security Appliances 7.2.2, when configured to use the LOCAL authentication method, all…EPSS 2.6%7.8CVE-2007-0959Cisco asa 5500 vulnerabilityCisco PIX 500 and ASA 5500 Series Security Appliances 7.2.2, when configured to inspect certain TCP-based protocols, allows remote attackers to cause…EPSS 2.4%7.8CVE-2007-0961Cisco asa 5500 vulnerabilityCisco PIX 500 and ASA 5500 Series Security Appliances 6.x before 6.3(5.115), 7.0 before 7.0(5.2), and 7.1 before 7.1(2.5), and the FWSM 3.x before 3.…EPSS 3.3%7.8CVE-2007-0962Cisco firewall services module vulnerabilityCisco PIX 500 and ASA 5500 Series Security Appliances 7.0 before 7.0(4.14) and 7.1 before 7.1(2.1), and the FWSM 2.x before 2.3(4.12) and 3.x before …EPSS 2.4%7.8CVE-2003-1003Cisco pix firewall improper input validation vulnerabilityCisco 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 s…EPSS 1.4%7.5CVE-2006-0515Cisco adaptive security appliance software vulnerabilityCisco PIX/ASA 7.1.x before 7.1(2) and 7.0.x before 7.0(5), PIX 6.3.x before 6.3.5(112), and FWSM 2.3.x before 2.3(4) and 3.x before 3.1(7), when used…EPSS 9.8%7.5CVE-2005-4499Cisco vpn 3001 concentrator vulnerabilityThe Downloadable RADIUS ACLs feature in Cisco PIX and VPN 3000 concentrators, when creating an ACL on the Cisco Secure Access Control Server (CS ACS)…EPSS 2.6%

Source: NIST National Vulnerability Database (record CVE-2000-1022), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.