CVE-2000-1022
highpriority · track · 42EPSS 0.071 · 94 %ileexploit · functionalEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
- EDB-20231Cisco PIX Firewall 4.x/5.x - SMTP Content Filtering Evasionfunctional · exploit_db
affected products (9)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- http://archives.neohapsis.com/archives/bugtraq/2000-09/0222.htmlenisa_euvd
- http://archives.neohapsis.com/archives/bugtraq/2000-09/0241.htmlenisa_euvd
- http://www.cisco.com/warp/public/707/PIXfirewallSMTPfilter-pub.shtmlenisa_euvd
- http://www.securityfocus.com/bid/1698enisa_euvd
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5277enisa_euvd
- http://archives.neohapsis.com/archives/bugtraq/2000-09/0222.htmlnvd
- http://archives.neohapsis.com/archives/bugtraq/2000-09/0241.htmlnvd
- http://www.cisco.com/warp/public/707/PIXfirewallSMTPfilter-pub.shtmlnvd
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