The CBC-MAC integrity functions in the nCipher nCore API before 2.18 transmit the initialization vector IV as part of a message when the implementation uses a non-zero IV, which allows remote attackers to bypass integrity checks and modify messages without being detected
Published Mar 9, 2006
5.0
MEDIUMCVSS 2.0
EPSS 1.57%
Description
The CBC-MAC integrity functions in the nCipher nCore API before 2.18 transmit the initialization vector IV as part of a message when the implementation uses a non-zero IV, which allows remote attackers to bypass integrity checks and modify messages without being detected.
Affected products
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: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 2, 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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.57% (0.01566) | 74.43th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.57% (0.01570) | 72.07th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.66% (0.00665) | 69.51th | v4 (v2025.03.14) |
| Feb 13, 2025 | 0.83% (0.00826) | 81.98th | v3 (v2023.03.01) |
| Dec 17, 2024 | 4.07% (0.04071) | 92.02th | v3 (v2023.03.01) |
| Jun 28, 2024 | 7.12% (0.07119) | 94.04th | v3 (v2023.03.01) |
| Jan 28, 2024 | 27.27% (0.27266) | 96.36th | v3 (v2023.03.01) |
| Mar 28, 2023 | 34.17% (0.34169) | 96.40th | v3 (v2023.03.01) |
| Mar 7, 2023 | 27.27% (0.27266) | 96.02th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
No CWE recorded.
References (7)
- http://secunia.com/advisories/19137 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://securitytracker.com/id?1015718 vdb-entryx_refsource_SECTRACKPatchVendor Advisory
- http://www.ncipher.com/resources/96/sa13_cbcmac_iv_misleading_programming_interface x_refsource_CONFIRMPatchVendor Advisory
- http://www.securityfocus.com/archive/1/427150/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/17011 vdb-entryx_refsource_BIDPatch
- http://www.vupen.com/english/advisories/2006/0862 vdb-entryx_refsource_VUPEN
- https://exchange.xforce.ibmcloud.com/vulnerabilities/25062 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/19137 | third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory | |
| http://securitytracker.com/id?1015718 | vdb-entryx_refsource_SECTRACKPatchVendor Advisory | |
| http://www.ncipher.com/resources/96/sa13_cbcmac_iv_misleading_programming_interface | x_refsource_CONFIRMPatchVendor Advisory | |
| http://www.securityfocus.com/archive/1/427150/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/17011 | vdb-entryx_refsource_BIDPatch | |
| http://www.vupen.com/english/advisories/2006/0862 | vdb-entryx_refsource_VUPEN | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/25062 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.