CVE-2000-1221
The line printer daemon (lpd) in the lpr package in multiple Linux operating systems authenticates by comparing the reverse-resolved…
- 10.0HighCVSS base score
- 16.7%Exploitation in 30 daysEPSS · top 2.9% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
The line printer daemon (lpd) in the lpr package in multiple Linux operating systems authenticates by comparing the reverse-resolved hostname of the local machine to the hostname of the print server as returned by gethostname, which allows remote attackers to bypass intended access controls by modifying the DNS for the attacking IP.
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.
Show the exploits1
Exploit-DB1 entry
- RedHat 6.1 / IRIX 6.5.18 - 'lpd' Command Execution (Exploit-DB entry) (opens in a new tab)
EDB-ID 19722remote, unixpublished 11 Jan 2000Verified
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 | High10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 16.7% · top 2.9% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 10.0.
Affected products
n/a
- affected n/a
References
7
- 20000109 lpr -- access control problem and root exploit (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- A010800-v (opens in a new tab)vendor-advisoryx_refsource_ATSTAKEx_transferred
- 927 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2000:002 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- VU#30308 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 20000108 Quadruple Inverted Backflip (opens in a new tab)vendor-advisoryx_refsource_L0PHTx_transferred
- redhat-lpd-auth(3840) (opens in a new tab)vdb-entryx_refsource_XFx_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-2000-1203 (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-2000-1221)Record last updated .