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CVE-2017-0377
Tor 0.3.x before 0.3.0.9 has a guard-selection algorithm that only considers the exit relay (not the exit relay's family), which might…
High7.5EPSS 2.4%
- Published
- Updated
- Reserved
- Assigned by
- debian
Description
Tor 0.3.x before 0.3.0.9 has a guard-selection algorithm that only considers the exit relay (not the exit relay's family), which might allow remote attackers to defeat intended anonymity properties by leveraging the existence of large families.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 2.4% · top 16% of all CVEs (3 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
Tor
- affected Tor
References (5)
- https://trac.torproject.org/projects/tor/ticket/22753 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://security-tracker.debian.org/CVE-2017-0377 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://blog.torproject.org/blog/tor-0309-released-security-update-clients (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://blog.torproject.org/blog/tor-0314-alpha-released-security-update-clients (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/torproject/tor/commit/665baf5ed5c6186d973c46cdea165c0548027350 (opens in a new tab)x_refsource_CONFIRMx_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-2017-0377)Record last updated .