CVE-2000-1022

The mailguard feature in Cisco Secure PIX Firewall 5.2(2) and earlier does not properly restrict...

7.5 HighPublic exploit

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.

Exploit likelihood

7.10%Up 2.6 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2000-1022
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2000-1022
Updated: 2026-11-02

EUVDEUVD-2000-1009 No score

Record: EUVD-2000-1009
Updated: 2026-11-03

GitHub AdvisoriesGHSA-gv87-wvw4-8qwm No score

The mailguard feature in Cisco Secure PIX Firewall 5.2(2) and earlier does not properly restrict...

Record: GHSA-gv87-wvw4-8qwm
Updated: 2026-11-02

Affected products

cisco pix firewall software

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Cisco PIX Firewall 4.x/5.x - SMTP Content Filtering Evasion	2000-09-19

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2000-1022 is a high vulnerability (CVSS 7.5) in Cisco Pix Firewall Software, published December 11, 2000. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 7.10%, the 94th percentile. No source names a fixed version.