Tor 0.1.0.13 and earlier, and experimental versions 0.1.1.4-alpha and earlier, does not reject certain weak keys when using ephemeral Diffie-Hellman (DH) handshakes, which allows malicious Tor servers to obtain the keys that a client uses for other systems in the circuit
Published Aug 21, 2005
5.0
MEDIUMCVSS 2.0
EPSS 1.25%
Description
Tor 0.1.0.13 and earlier, and experimental versions 0.1.1.4-alpha and earlier, does not reject certain weak keys when using ephemeral Diffie-Hellman (DH) handshakes, which allows malicious Tor servers to obtain the keys that a client uses for other systems in the circuit.
Affected products
No data.
- 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
- 0.1.0.1
- 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
- 0.1.1.1_alpha
- 0.1.1.2_alpha
- 0.1.1.3_alpha
- 0.1.1.4_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:N/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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.25% (0.01247) | 68.23th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.25% (0.01247) | 65.35th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.41% (0.00408) | 59.09th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.35% (0.00353) | 72.81th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.38% (0.00384) | 72.37th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.38% (0.00384) | 68.87th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
No CWE recorded.
References (4)
- http://archives.seul.org/or/announce/Aug-2005/msg00002.html mailing-listx_refsource_MLISTVendor Advisory
- http://marc.info/?l=bugtraq&m=112448002732443&w=2 mailing-listx_refsource_BUGTRAQ
- http://secunia.com/advisories/16424 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://securitytracker.com/id?1014739 vdb-entryx_refsource_SECTRACK
| Link | Providers | Tags |
|---|---|---|
| http://archives.seul.org/or/announce/Aug-2005/msg00002.html | mailing-listx_refsource_MLISTVendor Advisory | |
| http://marc.info/?l=bugtraq&m=112448002732443&w=2 | mailing-listx_refsource_BUGTRAQ | |
| http://secunia.com/advisories/16424 | third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory | |
| http://securitytracker.com/id?1014739 | vdb-entryx_refsource_SECTRACK |
Change history (0)
No recorded changes yet.