hostapd: Not preventig the use of low quality PRNG in EAP mode leads to insufficient entropy
Published Feb 28, 2020
7.5
HIGHCVSS 3.1
EPSS 3.84%
Description
hostapd before 2.6, in EAP mode, makes calls to the rand() and random() standard library functions without any preceding srand() or srandom() call, which results in inappropriate use of deterministic values. This was fixed in conjunction with CVE-2016-10743.
Affected products
No data.
Configuration 2
- 8.0
- 9.0
No data.
Red Hat Enterprise Linux 5
wpa_supplicant
Not affected
Red Hat Enterprise Linux 6
wpa_supplicant
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | wpa_supplicant | Not affected | n/a |
| Red Hat Enterprise Linux 6 | wpa_supplicant | Not affected | n/a |
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:N/I:N/A:H
No CVSS v3.0 score for this CVE.
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 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.84% (0.03842) | 89.80th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.75% (0.03748) | 88.42th | v5 (v2026.06.15) |
| Nov 21, 2025 | 1.41% (0.01405) | 79.87th | v4 (v2025.03.14) |
| Nov 18, 2025 | 3.09% (0.03091) | 85.55th | v4 (v2025.03.14) |
| May 16, 2025 | 1.41% (0.01405) | 79.44th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.19% (0.03193) | 86.13th | v4 (v2025.03.14) |
| Dec 17, 2024 | 2.50% (0.02496) | 89.77th | v3 (v2023.03.01) |
| Jul 20, 2024 | 0.83% (0.00827) | 82.15th | v3 (v2023.03.01) |
| Feb 4, 2024 | 0.83% (0.00827) | 80.15th | v3 (v2023.03.01) |
| Jan 19, 2024 | 0.73% (0.00725) | 78.63th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.51% (0.00511) | 72.98th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.18% (0.01183) | 61.76th | v2 (v2022.01.01) |
| Oct 19, 2022 | 1.18% (0.01183) | 60.79th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.18% (0.01183) | 58.77th | v2 (v2022.01.01) |
| Feb 4, 2022 | 19.17% (0.19173) | 93.71th | v2 (v2022.01.01) |
| Feb 3, 2022 | 7.85% (0.07855) | 85.01th | v1 |
| Jan 6, 2022 | 7.85% (0.07855) | 84.84th | v1 |
| Sep 1, 2021 | 1.86% (0.01865) | 76.13th | v1 |
| Apr 14, 2021 | 1.86% (0.01865) | 0.00th | v1 |
References (12)
- http://packetstormsecurity.com/files/156573/Hostapd-Insufficient-Entropy.html x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2020/Feb/26 mailing-listx_refsource_FULLDISCExploitMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/02/27/1 mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/02/27/2 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2019-10064 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1811069 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2020/03/msg00010.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00013.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://moabi.com/advisories/CVE-2019-10064.html
- https://nvd.nist.gov/vuln/detail/CVE-2019-10064
- https://w1.fi/cgit/hostap/commit/?id=98a516eae8260e6fd5c48ddecf8d006285da7389 x_refsource_MISCPatchThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-10064
Change history (0)
No recorded changes yet.