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CVE-2000-1022
The mailguard feature in Cisco Secure PIX Firewall 5.2(2) and earlier does not properly restrict access to SMTP commands, which allows…
High7.5EPSS 7.1%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Timeline
ID reserved
By mitre
- 59 days later
· 59 days later
Published
- 24 years later
· 24 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 7.1% · top 5.7% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (5)
- 1698 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- cisco-pix-smtp-filtering(5277) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 20001005 Cisco Secure PIX Firewall Mailguard Vulnerability (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- 20000920 Re: Cisco PIX Firewall (smtp content filtering hack) - Version 4.2(1) not exploitable (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20000919 Cisco PIX Firewall (smtp content filtering hack) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2000-1022)Record last updated .