Crypto++ 5.6.4 incorrectly uses Microsoft's stack-based _malloca and _freea functions
Published Jan 30, 2017
7.5
HIGHCVSS 3.0
EPSS 2.73%
Description
Crypto++ 5.6.4 incorrectly uses Microsoft's stack-based _malloca and _freea functions. The library will request a block of memory to align a table in memory. If the table is later reallocated, then the wrong pointer could be freed.
Affected products
No data.
- 5.6.4
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:P
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.73% (0.02735) | 85.60th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.73% (0.02735) | 84.14th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.82% (0.02823) | 84.90th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.77% (0.06774) | 85.10th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.85% (0.02854) | 85.30th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.45% (0.00452) | 75.96th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.45% (0.00452) | 74.39th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.45% (0.00452) | 71.19th | 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) |
References (5)
- http://www.openwall.com/lists/oss-security/2016/09/23/5 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/23/9 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/93164 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://github.com/weidai11/cryptopp/issues/302 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://www.cryptopp.com/release565.html x_refsource_CONFIRMRelease NotesVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2016/09/23/5 | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2016/09/23/9 | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| http://www.securityfocus.com/bid/93164 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://github.com/weidai11/cryptopp/issues/302 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://www.cryptopp.com/release565.html | x_refsource_CONFIRMRelease NotesVendor Advisory |
Change history (0)
No recorded changes yet.