CVE-2003-0213
ctrlpacket.c in PoPToP PPTP server before 1.1.4-b3 allows remote attackers to cause a denial of service via a length field of 0 or 1,…
- 7.5HighCVSS base score
- 70.9%Exploitation in 30 daysEPSS · top 0.6% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 6Public exploitsMetasploit, Nuclei and Exploit-DB
Description
ctrlpacket.c in PoPToP PPTP server before 1.1.4-b3 allows remote attackers to cause a denial of service via a length field of 0 or 1, which causes a negative value to be fed into a read operation, leading to a buffer overflow.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module and 5 Exploit-DB entries for it.
Show the exploits6
Metasploit modules1 module
- Poptop Negative Read Overflow (Metasploit module) (opens in a new tab)
exploit/linux/pptp/poptop_negative_readRank greatdisclosed 9 Apr 2003
Exploit-DB5 entries
- PoPToP - Negative Read Overflow (Metasploit) (Exploit-DB entry) (opens in a new tab)
EDB-ID 16845remote, linuxpublished 23 Nov 2010Verified
- PoPToP PPTP 1.1.4-b3 - 'poptop-sane.c' Remote Command Execution (Exploit-DB entry) (opens in a new tab)
EDB-ID 19remote, linuxpublished 25 Apr 2003Verified
- PoPToP PPTP 1.1.4-b3 - Remote Command Execution (Exploit-DB entry) (opens in a new tab)
EDB-ID 16remote, linuxpublished 18 Apr 2003Verified
- PoPToP PPTP 1.0/1.1.x - Negative 'read()' Argument Remote Buffer Overflow (Exploit-DB entry) (opens in a new tab)
EDB-ID 22479remote, linuxpublished 9 Apr 2003Verified
- PoPToP < 1.1.3-b3/1.1.3-20030409 - Negative Read Overflow (Metasploit) (Exploit-DB entry) (opens in a new tab)
EDB-ID 9952remote, linuxpublished 9 Apr 2003Verified
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
- 4 days later
· 4 days later
Published
- 21 years later
· 21 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)
- 70.9% · top 0.6% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
References
9
- 20030418 Exploit for PoPToP PPTP server (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- SuSE-SA:2003:029 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- VU#673993 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 7316 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://sourceforge.net/project/shownotes.php?release_id=138437 (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-295 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 20030422 Re: Exploit for PoPToP PPTP server - Linux version (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20030409 PoPToP PPTP server remotely exploitable buffer overflow (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20030428 GLSA: pptpd (200304-08) (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)
- EUVD EUVD-2003-0208 (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-2003-0213)Record last updated .