integer overflow in calloc
Published Feb 3, 2021
7.3
HIGHCVSS 3.1
EPSS 1.57%
Description
In Wind River VxWorks, memory allocator has a possible overflow in calculating the memory block's size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption.
Affected products
No data.
Configuration 1
Configuration 2
- ≥ 46.8.0 · ≤ 48.6.2
- ≥ 46.9.1 · ≤ 46.9.3
- 46.7.0
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.57% (0.01566) | 74.40th | v5 (v2026.06.15) |
| Jul 14, 2026 | 1.57% (0.01566) | 72.44th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.09% (0.00093) | 40.04th | v3 (v2023.03.01) |
| Oct 20, 2023 | 0.09% (0.00093) | 39.16th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.08% (0.00079) | 32.92th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00076) | 30.73th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.85% (0.03849) | 85.57th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.50% (0.04499) | 74.08th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.25% (0.02249) | 50.70th | v5 (v2026.06.15) |
| Jan 6, 2022 | 2.25% (0.02249) | 50.20th | v1 |
| Sep 1, 2021 | 0.51% (0.00510) | 28.30th | v1 |
| Apr 14, 2021 | 0.51% (0.00510) | 0.00th | v1 |
References (3)
- https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2020-28895 x_refsource_MISCVendor Advisory
- https://support2.windriver.com/index.php?page=defects&on=view&id=V7LIBC-1327 x_refsource_MISCPermissions Required
- https://www.oracle.com/security-alerts/cpuapr2022.html x_refsource_MISCPatchThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2020-28895 | x_refsource_MISCVendor Advisory | |
| https://support2.windriver.com/index.php?page=defects&on=view&id=V7LIBC-1327 | x_refsource_MISCPermissions Required | |
| https://www.oracle.com/security-alerts/cpuapr2022.html | x_refsource_MISCPatchThird Party Advisory |
Change history (0)
No recorded changes yet.