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CVE-2014-5117
Tor before 0.2.4.23 and 0.2.5 before 0.2.5.6-alpha maintains a circuit after an inbound RELAY_EARLY cell is received by a client, which…
Medium5.8EPSS 2.1%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Tor before 0.2.4.23 and 0.2.5 before 0.2.5.6-alpha maintains a circuit after an inbound RELAY_EARLY cell is received by a client, which makes it easier for remote attackers to conduct traffic-confirmation attacks by using the pattern of RELAY and RELAY_EARLY cells as a means of communicating information about hidden service names.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
- EPSS (exploitation in 30 days)
- 2.1% · top 18% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.8.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (7)
- 60084 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://trac.torproject.org/projects/tor/ticket/1038 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 60647 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://blog.torproject.org/blog/tor-security-advisory-relay-early-traffic-confirmation-attack (opens in a new tab)x_refsource_CONFIRMx_transferred
- [tor-talk] 20140730 Tor 0.2.5.6-alpha is out (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [tor-announce] 20140730 Tor security advisory: "relay early" traffic confirmation attack (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [tor-announce] 20140730 Tor 0.2.4.23 is released (opens in a new tab)mailing-listx_refsource_MLISTx_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)
- 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://trackcve.app/cve/CVE-2014-5117)Record last updated .