Broadcom wl driver is vulnerable to heap buffer overflow
Published Feb 3, 2020
8.8
HIGHCVSS 3.1
EPSS 2.60%
Description
The Broadcom wl WiFi driver is vulnerable to a heap buffer overflow. If the vendor information element data length is larger than 164 bytes, a heap buffer overflow is triggered in wlc_wpa_plumb_gtk. In the worst case scenario, by sending specially-crafted WiFi packets, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. More typically, this vulnerability will result in denial-of-service conditions.
Affected products
-
- Version wlStatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Broadcom | WiFi drivers | n/a |
|
Configuration 1
- 1.2
Configuration 2
- 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:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (CVE.org) ▾
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:A/AC:L/Au:N/C:C/I:C/A:C
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 v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (24 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.60% (0.02597) | 84.78th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.42% (0.02422) | 81.98th | v5 (v2026.06.15) |
| Nov 21, 2025 | 1.91% (0.01908) | 82.72th | v4 (v2025.03.14) |
| Nov 18, 2025 | 0.35% (0.00354) | 54.88th | v4 (v2025.03.14) |
| May 6, 2025 | 1.91% (0.01908) | 82.26th | v4 (v2025.03.14) |
| Apr 27, 2025 | 0.35% (0.00354) | 56.79th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.58% (0.02585) | 84.25th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.17% (0.06169) | 84.30th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.58% (0.02585) | 84.56th | v4 (v2025.03.14) |
| Dec 17, 2024 | 7.33% (0.07332) | 94.01th | v3 (v2023.03.01) |
| Dec 12, 2024 | 0.18% (0.00180) | 56.57th | v3 (v2023.03.01) |
| Jul 16, 2024 | 0.13% (0.00127) | 47.92th | v3 (v2023.03.01) |
| Jul 1, 2024 | 0.16% (0.00163) | 53.17th | v3 (v2023.03.01) |
| May 29, 2024 | 0.13% (0.00131) | 48.15th | v3 (v2023.03.01) |
| Apr 6, 2023 | 0.13% (0.00127) | 45.82th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00119) | 44.35th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.89% (0.01888) | 77.36th | v2 (v2022.01.01) |
| Mar 4, 2023 | 1.89% (0.01888) | 77.36th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.89% (0.01888) | 75.36th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.67% (0.04674) | 74.37th | v2 (v2022.01.01) |
| Feb 3, 2022 | 5.88% (0.05885) | 81.24th | v1 |
| Jan 6, 2022 | 5.88% (0.05885) | 81.05th | v1 |
| Sep 1, 2021 | 1.37% (0.01374) | 70.79th | v1 |
| Apr 14, 2021 | 1.37% (0.01374) | 0.00th | v1 |
References (2)
- https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.html x_refsource_MISCThird Party Advisory
- https://kb.cert.org/vuls/id/166939/ x_refsource_MISCThird Party AdvisoryUS Government Resource
| Link | Providers | Tags |
|---|---|---|
| https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.html | x_refsource_MISCThird Party Advisory | |
| https://kb.cert.org/vuls/id/166939/ | x_refsource_MISCThird Party AdvisoryUS Government Resource |
Change history (0)
No recorded changes yet.