A DNS client stack-based buffer overflow in ipdnsc_decode_name() affects Wind River VxWorks 6.5 through 7
Published Mar 11, 2021
9.8
CRITICALCVSS 3.1
EPSS 1.86%
Description
A DNS client stack-based buffer overflow in ipdnsc_decode_name() affects Wind River VxWorks 6.5 through 7. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
Affected products
No data.
Configuration 2
- n/a
Configuration 3
- n/a
Configuration 4
- n/a
Configuration 5
- n/a
Configuration 6
- n/a
Configuration 7
- n/a
Configuration 8
- n/a
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:H/I:H/A:H
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
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 1, 2026 | 1.86% (0.01857) | 78.42th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.89% (0.01894) | 76.83th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.42% (0.00416) | 59.62th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.27% (0.00275) | 68.99th | v3 (v2023.03.01) |
| Jul 14, 2024 | 0.27% (0.00275) | 68.42th | v3 (v2023.03.01) |
| Feb 1, 2024 | 0.23% (0.00228) | 61.09th | v3 (v2023.03.01) |
| Dec 21, 2023 | 0.23% (0.00233) | 61.36th | v3 (v2023.03.01) |
| Nov 25, 2023 | 0.21% (0.00208) | 58.61th | v3 (v2023.03.01) |
| Oct 16, 2023 | 0.19% (0.00188) | 56.09th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.15% (0.00155) | 49.98th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.58% (0.03581) | 84.90th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.58% (0.03581) | 83.36th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.58% (0.03581) | 66.52th | v2 (v2022.01.01) |
References (2)
- https://blog.exodusintel.com/2016/08/09/vxworks-execute-my-packets/ x_refsource_MISCExploitThird Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-553445.pdf x_refsource_CONFIRMThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://blog.exodusintel.com/2016/08/09/vxworks-execute-my-packets/ | x_refsource_MISCExploitThird Party Advisory | |
| https://cert-portal.siemens.com/productcert/pdf/ssa-553445.pdf | x_refsource_CONFIRMThird Party Advisory |
Change history (0)
No recorded changes yet.