MEDIUM
Microchip CryptoAuthentication Library CryptoAuthLib prior to 20191122 has a Buffer Overflow (issue 2 of 2)
Published Oct 22, 2020
6.8
MEDIUMCVSS 3.1
EPSS 0.60%
Description
Microchip CryptoAuthentication Library CryptoAuthLib prior to 20191122 has a Buffer Overflow (issue 2 of 2).
Affected products
No data.
- < 20191122
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.
6.8 MEDIUM NVD
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Physical
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
No CVSS v3.0 score for this CVE.
4.6 MEDIUM NVD
AV:L/AC:L/Au:N/C:P/I:P/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.60% 0.00596
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.00596
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.60% (0.00596) | 46.58th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.60% (0.00596) | 47.14th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.22% (0.00218) | 60.22th | v3 (v2023.03.01) |
| Feb 25, 2024 | 0.22% (0.00218) | 58.90th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.18% (0.00180) | 54.55th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.13% (0.00133) | 46.56th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.83% (0.00833) | 24.58th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
Weaknesses (1)
References (3)
- http://www.openwall.com/lists/oss-security/2020/10/22/1 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://census-labs.com/news/2020/10/21/microchip-cryptoauthlib-atcab_genkey_base-buffer-overflow/ x_refsource_MISCExploitPress/Media CoverageThird Party Advisory
- https://www.microchip.com/design-centers/security-ics/cryptoauthentication x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2020/10/22/1 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://census-labs.com/news/2020/10/21/microchip-cryptoauthlib-atcab_genkey_base-buffer-overflow/ | x_refsource_MISCExploitPress/Media CoverageThird Party Advisory | |
| https://www.microchip.com/design-centers/security-ics/cryptoauthentication | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Oct 22, 2020
Updated Aug 5, 2024
Reserved Sep 8, 2019
Link CVE-2019-16129
CISA Vulnrichment
Updated n/a