wpa_supplicant: Accepting a retransmitted FT Reassociation Request and reinstalling the pairwise key while processing it
Published Oct 17, 2017
8.1
HIGHCVSS 3.0
EPSS 4.58%
Description
Wi-Fi Protected Access (WPA and WPA2) that supports IEEE 802.11r allows reinstallation of the Pairwise Transient Key (PTK) Temporal Key (TK) during the fast BSS transmission (FT) handshake, allowing an attacker within radio range to replay, decrypt, or spoof frames.
Affected products
-
- Version WPAStatusaffectedConstraints-
- Version WPA2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wi-Fi Alliance | Wi-Fi Protected Access (WPA and WPA2) | n/a |
|
Configuration 1
- 14.04
- 16.04
- 17.04
- 8.0
- 9.0
- n/a
- 10
- 10.4
- 11
- 11.1
- 42.2
- 42.3
- 7
- 7
Configuration 2
- 0.2.4
- 0.2.5
- 0.2.6
- 0.2.8
- 0.3.7
- 0.3.9
- 0.3.10
- 0.3.11
- 0.4.7
- 0.4.8
- 0.4.9
- 0.4.10
- 0.4.11
- 0.5.7
- 0.5.8
- 0.5.9
- 0.5.10
- 0.5.11
- 0.6.8
- 0.6.9
- 0.6.10
- 0.7.3
- 1.0
- 1.1
- 2.0
- 2.1
- 2.2
- 2.3
- 2.4
- 2.5
- 2.6
- 0.2.4
- 0.2.5
- 0.2.6
- 0.2.7
- 0.2.8
- 0.3.7
- 0.3.8
- 0.3.9
- 0.3.10
- 0.3.11
- 0.4.7
- 0.4.8
- 0.4.9
- 0.4.10
- 0.4.11
- 0.5.7
- 0.5.8
- 0.5.9
- 0.5.10
- 0.5.11
- 0.6.8
- 0.6.9
- 0.6.10
- 0.7.3
- 1.0
- 1.1
- 2.0
- 2.1
- 2.2
- 2.3
- 2.4
- 2.5
- 2.6
Configuration 3
- 12
- 12
- 11
- 11
- 11
- 12
- 6
No data.
Red Hat Enterprise Linux 7
wpa_supplicant-1:2.6-5.el7_4.1
Fixed · RHSA-2017:2907
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 7 | wpa_supplicant-1:2.6-5.el7_4.1 | Fixed | RHSA-2017:2907 |
| 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
Red Hat statement
This issue did not affect the versions of wpa_supplicant as shipped with Red Hat Enterprise Linux 5 and 6. This issue affects the versions of wpa_supplicant as shipped with Red Hat Enterprise Linux 7.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
AV:A/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
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.58% (0.04575) | 91.33th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.58% (0.04575) | 90.38th | v5 (v2026.06.15) |
| May 30, 2026 | 0.43% (0.00430) | 62.83th | v4 (v2025.03.14) |
| May 22, 2026 | 1.59% (0.01590) | 81.86th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.48% (0.00477) | 62.92th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.12% (0.00122) | 48.18th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.12% (0.00122) | 45.79th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.13% (0.00129) | 45.97th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
| Feb 3, 2022 | 5.43% (0.05433) | 79.90th | v5 (v2026.06.15) |
| Apr 14, 2021 | 5.43% (0.05433) | 0.00th | v1 |
References (30)
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- https://w1.fi/security/2017-1/wpa-packet-number-reuse-with-replayed-messages.txt x_refsource_MISCThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-13082
- https://www.krackattacks.com/ x_refsource_MISCTechnical DescriptionThird Party Advisory
Change history (0)
No recorded changes yet.