Back
CVE-2007-0956
The telnet daemon (telnetd) in MIT krb5 before 1.6.1 allows remote attackers to bypass authentication and gain system access via a…
- 10.0HighCVSS base score
- 30.2%Exploitation in 30 daysEPSS · top 1.8% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The telnet daemon (telnetd) in MIT krb5 before 1.6.1 allows remote attackers to bypass authentication and gain system access via a username beginning with a '-' character, a similar issue to CVE-2007-0882.
Timeline
ID reserved
By mitre
- 51 days later
· 51 days later
Published
- 17 years later
· 17 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)
- 30.2% · top 1.8% of all CVEs (10 Nov 2026)
Loading the EPSS history…
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
29
- ADV-2007-1218 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- oval:org.mitre.oval:def:10046 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 20070403 MITKRB5-SA-2007-001: telnetd allows login as arbitrary user [CVE-2007-0956] (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 24706 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 24740 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- RHSA-2007:0095 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- VU#220816 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 24786 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- TA07-093B (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- 20070405 FLEA-2007-0008-1: krb5 (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- DSA-1276 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 24735 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- kerberos-telnet-security-bypass(33414) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2007-001-telnetd.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1017848 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 23281 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 24750 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 24817 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 24757 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 24755 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2007-1249 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 102867 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
- SUSE-SA:2007:025 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 24785 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- MDKSA-2007:077 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- USN-449-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 24736 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20070404 rPSA-2007-0063-1 krb5 krb5-server krb5-services krb5-test krb5-workstation (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- GLSA-200704-02 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_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-2007-0950 (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-2007-0956)Record last updated .