CVE-2004-2375
Buffer overflow in the POP3 server in 1st Class Mail Server 4.0 allows remote attackers to cause a denial of service (crash) and possibly…
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Buffer overflow in the POP3 server in 1st Class Mail Server 4.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an APOP USER command with a long second parameter (digest).
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Exploit-DB1 entry
- 1st Class Internet Solutions 1st Class Mail Server 4.0 - Remote Buffer Overflow (PoC) (Exploit-DB entry) (opens in a new tab)
EDB-ID 23787dos, multiplepublished 2 Mar 2004Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
Published
- 19 years later
· 19 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)
- 5.9% · top 6.7% of all CVEs (9 Nov 2026)
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 (7)
- 4129 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 1009279 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 1st-class-apop-dos(15314) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://www.digiti.be/jeffosz/advisories/1stclasspop3.txt (opens in a new tab)x_refsource_MISCx_transferred
- 9794 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 11029 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.zone-h.org/advisories/read/id=4047 (opens in a new tab)x_refsource_MISCx_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)
- EUVD EUVD-2004-2367 (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-2004-2375)Record last updated .