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CVE-2007-1103
Tor does not verify a node's uptime and bandwidth advertisements, which allows remote attackers who operate a low resource node to make…
- 4.3MediumCVSS base score
- 1.8%Exploitation in 30 daysEPSS · top 21% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Tor does not verify a node's uptime and bandwidth advertisements, which allows remote attackers who operate a low resource node to make false claims of greater resources, which places the node into use for many circuits and compromises the anonymity of traffic sources and destinations.
Timeline
ID reserved
By mitre
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 | Medium4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 1.8% · top 21% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Affected products
n/a
- affected n/a
References
5
- [or-talk] 20070225 "Low-Resource Routing Attacks Against Anonymous Systems" (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [or-talk] 20070225 Re: ISP controlling entry/exti ("Low-Resource Routing Attacks Against Anonymous Systems") (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://www.cs.colorado.edu/department/publications/reports/docs/CU-CS-1025-07.pdf (opens in a new tab)x_refsource_MISCx_transferred
- [or-talk] 20070225 Re: "Low-Resource Routing Attacks Against Anonymous Systems" (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 45249 (opens in a new tab)vdb-entryx_refsource_OSVDBx_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-2007-1100 (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-2007-1103)Record last updated .