Stack-based buffer overflow in Asuswrt-Merlin firmware for ASUS devices older than 384.4 and ASUS firmware before 3.0.0.4.382.50470 for devices allows remote attackers to execute arbitrary code by providing a long string to the blocking.asp page via a GET or POST request
Published Nov 21, 2019
9.8
CRITICALCVSS 3.1
EPSS 17.19%
Description
Stack-based buffer overflow in Asuswrt-Merlin firmware for ASUS devices older than 384.4 and ASUS firmware before 3.0.0.4.382.50470 for devices allows remote attackers to execute arbitrary code by providing a long string to the blocking.asp page via a GET or POST request. Vulnerable parameters are flag, mac, and cat_id.
Affected products
No data.
- < 3.0.0.4.382.50470
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
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 (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 17.19% (0.17188) | 97.01th | v5 (v2026.06.15) |
| Jun 15, 2026 | 17.19% (0.17188) | 96.69th | v5 (v2026.06.15) |
| Nov 21, 2025 | 32.01% (0.32014) | 96.63th | v4 (v2025.03.14) |
| Nov 18, 2025 | 5.52% (0.05519) | 89.28th | v4 (v2025.03.14) |
| Jul 15, 2025 | 32.01% (0.32014) | 96.60th | v4 (v2025.03.14) |
| Apr 5, 2025 | 30.26% (0.30260) | 96.30th | v4 (v2025.03.14) |
| Mar 30, 2025 | 9.61% (0.09613) | 92.13th | v4 (v2025.03.14) |
| Mar 29, 2025 | 21.14% (0.21142) | 92.92th | v4 (v2025.03.14) |
| Mar 17, 2025 | 9.06% (0.09064) | 92.02th | v4 (v2025.03.14) |
| Dec 17, 2024 | 3.05% (0.03047) | 90.76th | v3 (v2023.03.01) |
| Oct 28, 2023 | 2.20% (0.02197) | 88.20th | v3 (v2023.03.01) |
| Sep 10, 2023 | 1.74% (0.01744) | 86.41th | v3 (v2023.03.01) |
| Jul 21, 2023 | 1.36% (0.01357) | 84.41th | v3 (v2023.03.01) |
| Mar 26, 2023 | 1.15% (0.01149) | 82.63th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.08% (0.01078) | 82.01th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.98% (0.01978) | 79.27th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.98% (0.01978) | 77.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.98% (0.01978) | 56.34th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.37% (0.01374) | 32.00th | v1 |
| Jan 6, 2022 | 1.37% (0.01374) | 31.26th | v1 |
| Sep 1, 2021 | 1.37% (0.01374) | 70.79th | v1 |
| Apr 14, 2021 | 1.37% (0.01374) | 0.00th | v1 |
References (2)
- https://pagedout.institute/download/PagedOut_001_beta1.pdf x_refsource_MISCExploitThird Party Advisory
- https://www.asus.com/Networking/RTAC66U/HelpDesk_BIOS x_refsource_MISCProduct
| Link | Providers | Tags |
|---|---|---|
| https://pagedout.institute/download/PagedOut_001_beta1.pdf | x_refsource_MISCExploitThird Party Advisory | |
| https://www.asus.com/Networking/RTAC66U/HelpDesk_BIOS | x_refsource_MISCProduct |
Change history (0)
No recorded changes yet.