This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-Link Archer A7 Firmware Ver: 190726 AC1750 routers
Published Mar 25, 2020
9.8
CRITICALCVSS 3.1
EPSS 6.53%
Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-Link Archer A7 Firmware Ver: 190726 AC1750 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of DNS responses. The issue results from the lack of proper validation of DNS reponses prior to further processing. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the root user. Was ZDI-CAN-9661.
Affected products
-
- Version Firmware Ver: 190726StatusaffectedConstraints-
- Version
- 190726
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
CVSS:3.0/AV:N/AC:H/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 4, 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 4, 2026 | 6.53% (0.06534) | 93.59th | v5 (v2026.06.15) |
| Jun 15, 2026 | 7.22% (0.07219) | 93.50th | v5 (v2026.06.15) |
| Nov 21, 2025 | 2.76% (0.02757) | 85.50th | v4 (v2025.03.14) |
| Nov 18, 2025 | 21.16% (0.21159) | 95.27th | v4 (v2025.03.14) |
| Jun 19, 2025 | 2.76% (0.02757) | 85.34th | v4 (v2025.03.14) |
| Mar 30, 2025 | 21.16% (0.21159) | 95.17th | v4 (v2025.03.14) |
| Mar 29, 2025 | 30.56% (0.30556) | 94.80th | v4 (v2025.03.14) |
| Mar 17, 2025 | 21.16% (0.21159) | 95.19th | v4 (v2025.03.14) |
| Dec 17, 2024 | 1.06% (0.01062) | 83.92th | v3 (v2023.03.01) |
| Dec 12, 2024 | 3.31% (0.03309) | 91.67th | v3 (v2023.03.01) |
| Jun 20, 2024 | 2.70% (0.02703) | 90.54th | v3 (v2023.03.01) |
| May 20, 2024 | 2.42% (0.02416) | 89.91th | v3 (v2023.03.01) |
| Apr 1, 2024 | 2.62% (0.02624) | 90.11th | v3 (v2023.03.01) |
| Jan 13, 2024 | 1.87% (0.01867) | 87.09th | v3 (v2023.03.01) |
| Apr 12, 2023 | 1.54% (0.01537) | 85.11th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.79% (0.01790) | 86.16th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.16% (0.01156) | 61.37th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.16% (0.01156) | 60.36th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.16% (0.01156) | 58.36th | v2 (v2022.01.01) |
| Feb 4, 2022 | 15.36% (0.15362) | 92.49th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.99% (0.03991) | 73.89th | v1 |
| Jan 6, 2022 | 3.99% (0.03991) | 73.67th | v1 |
| Sep 1, 2021 | 0.92% (0.00918) | 60.61th | v1 |
| Apr 14, 2021 | 0.92% (0.00918) | 0.00th | v1 |
References (1)
- https://www.zerodayinitiative.com/advisories/ZDI-20-337/ x_refsource_MISCThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-20-337/ | x_refsource_MISCThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.