Tor client before 0.1.1.20 prefers entry points based on is_fast or is_stable flags, which could allow remote attackers to be preferred over nodes that are identified as more trustworthy "entry guard" (is_guard) systems by directory authorities
Published Jul 7, 2006
6.4
MEDIUMCVSS 2.0
EPSS 2.14%
Description
Tor client before 0.1.1.20 prefers entry points based on is_fast or is_stable flags, which could allow remote attackers to be preferred over nodes that are identified as more trustworthy "entry guard" (is_guard) systems by directory authorities.
Affected products
No data.
- 0.0.2
- 0.0.2_pre13
- 0.0.2_pre14
- 0.0.2_pre15
- 0.0.2_pre16
- 0.0.2_pre17
- 0.0.2_pre18
- 0.0.2_pre19
- 0.0.2_pre20
- 0.0.2_pre21
- 0.0.2_pre22
- 0.0.2_pre23
- 0.0.2_pre24
- 0.0.2_pre25
- 0.0.2_pre26
- 0.0.2_pre27
- 0.0.3
- 0.0.4
- 0.0.5
- 0.0.6
- 0.0.6.1
- 0.0.6.2
- 0.0.7
- 0.0.7.1
- 0.0.7.2
- 0.0.7.3
- 0.0.8
- 0.0.8.1
- 0.0.9
- 0.0.9.1
- 0.0.9.2
- 0.0.9.3
- 0.0.9.4
- 0.0.9.5
- 0.0.9.6
- 0.0.9.7
- 0.0.9.8
- 0.0.9.9
- 0.0.9.10
- 0.1.0.1
- 0.1.0.2
- 0.1.0.3
- 0.1.0.4
- 0.1.0.5
- 0.1.0.6
- 0.1.0.7
- 0.1.0.8
- 0.1.0.9
- 0.1.0.10
- 0.1.0.11
- 0.1.0.12
- 0.1.0.13
- 0.1.0.14
- 0.1.0.15
- 0.1.0.16
- 0.1.0.17
- 0.1.0.18
- 0.1.0.19
- 0.1.1.1_alpha
- 0.1.1.2_alpha
- 0.1.1.3_alpha
- 0.1.1.4_alpha
- 0.1.1.5_alpha
- 0.1.1.6_alpha
- 0.1.1.7_alpha
- 0.1.1.8_alpha
- 0.1.1.9_alpha
- 0.1.1.10_alpha
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.14% (0.02137) | 81.34th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.10% (0.02097) | 79.18th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.46% (0.00459) | 61.98th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.65% (0.00651) | 80.13th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.34% (0.00340) | 71.07th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.25% (0.00246) | 63.88th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.22% (0.00225) | 59.80th | v3 (v2023.03.01) |
| Nov 29, 2023 | 0.65% (0.00651) | 77.12th | v3 (v2023.03.01) |
| May 10, 2023 | 0.61% (0.00611) | 75.53th | v3 (v2023.03.01) |
| Apr 2, 2023 | 0.58% (0.00576) | 74.65th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.55% (0.00547) | 73.91th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
No CWE recorded.
References (4)
- http://secunia.com/advisories/20514 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://security.gentoo.org/glsa/glsa-200606-04.xml vendor-advisoryx_refsource_GENTOO
- http://tor.eff.org/cvs/tor/ChangeLog x_refsource_CONFIRM
- http://www.osvdb.org/25879 vdb-entryx_refsource_OSVDB
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/20514 | third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory | |
| http://security.gentoo.org/glsa/glsa-200606-04.xml | vendor-advisoryx_refsource_GENTOO | |
| http://tor.eff.org/cvs/tor/ChangeLog | x_refsource_CONFIRM | |
| http://www.osvdb.org/25879 | vdb-entryx_refsource_OSVDB |
Change history (0)
No recorded changes yet.