Buffer overflow on Dasan GPON ONT WiFi Router H640X 12.02-01121 2.77p1-1124 and 3.03p2-1146 devices allows remote attackers to execute arbitrary code via a long POST request to the login_action function in /cgi-bin/login_action.cgi (aka cgipage.cgi)
Published Jan 21, 2018
9.8
CRITICALCVSS 3.0
EPSS 5.04%
Description
Buffer overflow on Dasan GPON ONT WiFi Router H640X 12.02-01121 2.77p1-1124 and 3.03p2-1146 devices allows remote attackers to execute arbitrary code via a long POST request to the login_action function in /cgi-bin/login_action.cgi (aka cgipage.cgi).
Affected products
No data.
- 2.77p1-1124
- 3.03p2-1146
- 12.02-01121
Running on/with
- 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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 | 5.04% (0.05045) | 92.03th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.14% (0.05140) | 91.30th | v5 (v2026.06.15) |
| May 10, 2026 | 5.48% (0.05476) | 90.26th | v4 (v2025.03.14) |
| Mar 30, 2025 | 11.09% (0.11085) | 92.83th | v4 (v2025.03.14) |
| Mar 29, 2025 | 18.31% (0.18307) | 92.12th | v4 (v2025.03.14) |
| Mar 28, 2025 | 11.09% (0.11085) | 92.83th | v4 (v2025.03.14) |
| Mar 27, 2025 | 18.31% (0.18307) | 94.36th | v4 (v2025.03.14) |
| Mar 20, 2025 | 11.09% (0.11085) | 92.90th | v4 (v2025.03.14) |
| Mar 19, 2025 | 18.31% (0.18307) | 94.46th | v4 (v2025.03.14) |
| Mar 17, 2025 | 13.52% (0.13516) | 93.68th | v4 (v2025.03.14) |
| Dec 17, 2024 | 9.33% (0.09328) | 94.70th | v3 (v2023.03.01) |
| Jan 1, 2024 | 4.67% (0.04669) | 91.77th | v3 (v2023.03.01) |
| Dec 1, 2023 | 4.30% (0.04302) | 91.35th | v3 (v2023.03.01) |
| Mar 7, 2023 | 4.21% (0.04215) | 90.90th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.79% (0.05785) | 90.41th | v2 (v2022.01.01) |
| Oct 18, 2022 | 5.79% (0.05785) | 90.08th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.63% (0.05634) | 89.29th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.63% (0.05634) | 76.84th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.83% (0.01828) | 35.38th | v1 |
| Jan 6, 2022 | 1.83% (0.01828) | 34.69th | v1 |
| Sep 1, 2021 | 1.83% (0.01828) | 74.99th | v1 |
| Apr 14, 2021 | 1.83% (0.01828) | 0.00th | v1 |
References (3)
- https://blogs.securiteam.com/index.php/archives/3552 x_refsource_MISCExploitThird Party Advisory
- https://pastebin.com/Yxd9S46A x_refsource_MISC
- https://twitter.com/ankit_anubhav/status/982261670394249216 x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| https://blogs.securiteam.com/index.php/archives/3552 | x_refsource_MISCExploitThird Party Advisory | |
| https://pastebin.com/Yxd9S46A | x_refsource_MISC | |
| https://twitter.com/ankit_anubhav/status/982261670394249216 | x_refsource_MISC |
Change history (0)
No recorded changes yet.