HIGH
The TLS stack in Mono before 3.12.1 makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the "FREAK" issue, a different vulnerability than CVE-2015-0204
Published Jan 8, 2018
7.5
HIGHCVSS 3.0
EPSS 3.15%
Description
The TLS stack in Mono before 3.12.1 makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the "FREAK" issue, a different vulnerability than CVE-2015-0204.
Affected products
No data.
- < 3.12.1
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.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.15% 0.03152
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.03152
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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.15% (0.03152) | 87.51th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.21% (0.03213) | 86.49th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.92% (0.00921) | 74.36th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.50% (0.00497) | 77.04th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.50% (0.00497) | 75.56th | v3 (v2023.03.01) |
| Jul 11, 2023 | 0.50% (0.00497) | 73.02th | v3 (v2023.03.01) |
| Jun 1, 2023 | 0.61% (0.00607) | 75.53th | v3 (v2023.03.01) |
| May 8, 2023 | 0.86% (0.00860) | 79.88th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.30% (0.01296) | 83.71th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
Weaknesses (1)
References (8)
- http://www.mono-project.com/news/2015/03/07/mono-tls-vulnerability/ x_refsource_CONFIRMVendor Advisory
- http://www.openwall.com/lists/oss-security/2015/03/17/9 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/73250 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2547-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1202869 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://github.com/mono/mono/commit/9c38772f094168d8bfd5bc73bf8925cd04faad10 x_refsource_CONFIRMThird Party Advisory
- https://mitls.org/pages/attacks/SMACK#freak x_refsource_MISCThird Party Advisory
- https://www.debian.org/security/2015/dsa-3202 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.mono-project.com/news/2015/03/07/mono-tls-vulnerability/ | x_refsource_CONFIRMVendor Advisory | |
| http://www.openwall.com/lists/oss-security/2015/03/17/9 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/73250 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.ubuntu.com/usn/USN-2547-1 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1202869 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://github.com/mono/mono/commit/9c38772f094168d8bfd5bc73bf8925cd04faad10 | x_refsource_CONFIRMThird Party Advisory | |
| https://mitls.org/pages/attacks/SMACK#freak | x_refsource_MISCThird Party Advisory | |
| https://www.debian.org/security/2015/dsa-3202 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 8, 2018
Updated Aug 6, 2024
Reserved Mar 17, 2015
Link CVE-2015-2319
CISA Vulnrichment
Updated n/a