The default configuration on OpenSSL before 0.9.8 uses MD5 for creating message digests instead of a more cryptographically strong algorithm, which makes it easier for remote attackers to forge certificates with a valid certificate authority signature
Published Sep 16, 2005
7.5
HIGHCVSS 3.1
EPSS 0.84%
Description
The default configuration on OpenSSL before 0.9.8 uses MD5 for creating message digests instead of a more cryptographically strong algorithm, which makes it easier for remote attackers to forge certificates with a valid certificate authority signature.
Affected products
No data.
Configuration 2
- 4.10
- 5.04
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=169803 The Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw. More information regarding issue severity can be found here: http://www.redhat.com/security/updates/classification/
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.84% (0.00844) | 56.43th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.84% (0.00844) | 53.00th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.19% (0.00190) | 38.70th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.29% (0.00292) | 69.94th | v3 (v2023.03.01) |
| Feb 9, 2024 | 0.32% (0.00317) | 69.63th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.43% (0.00425) | 73.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.43% (0.00425) | 70.32th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
References (6)
- http://www.cits.rub.de/MD5Collisions/ x_refsource_MISCBroken Link
- http://www.ubuntu.com/usn/usn-179-1 vendor-advisoryx_refsource_UBUNTUVendor Advisory
- https://access.redhat.com/security/cve/CVE-2005-2946 Vendor Advisory
- https://bugzilla.ubuntu.com/show_bug.cgi?id=13593 x_refsource_MISCBroken LinkIssue TrackingVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2005-2946
- https://www.cve.org/CVERecord?id=CVE-2005-2946
| Link | Providers | Tags |
|---|---|---|
| http://www.cits.rub.de/MD5Collisions/ | x_refsource_MISCBroken Link | |
| http://www.ubuntu.com/usn/usn-179-1 | vendor-advisoryx_refsource_UBUNTUVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2005-2946 | Vendor Advisory | |
| https://bugzilla.ubuntu.com/show_bug.cgi?id=13593 | x_refsource_MISCBroken LinkIssue TrackingVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2005-2946 | ||
| https://www.cve.org/CVERecord?id=CVE-2005-2946 |
Change history (0)
No recorded changes yet.