A command injection vulnerability was discovered on the Zyxel EMG2926 home router with firmware V1.00(AAQT.4)b8
Published Apr 6, 2017 ·Due Oct 9, 2023
8.8
HIGHCVSS 3.1
EPSS 34.61%
Description
A command injection vulnerability was discovered on the Zyxel EMG2926 home router with firmware V1.00(AAQT.4)b8. The vulnerability is located in the diagnostic tools, specifically the nslookup function. A malicious user may exploit numerous vectors to execute arbitrary commands on the router, such as the ping_ip parameter to the expert/maintenance/diagnostic/nslookup URI.
Affected products
No data.
- v1.00\(aaqt.4\)b8
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:L/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/C:C/I:C/A:C
Date Added
Sep 18, 2023
Patch Due
Oct 9, 2023
Required Action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Aug 4, 2026 · SSVC 2.0.3
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 (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 34.61% (0.34607) | 98.38th | v5 (v2026.06.15) |
| Sep 19, 2026 | 34.37% (0.34367) | 98.34th | v5 (v2026.06.15) |
| Sep 17, 2026 | 36.52% (0.36519) | 98.42th | v5 (v2026.06.15) |
| Jun 15, 2026 | 37.63% (0.37634) | 98.34th | v5 (v2026.06.15) |
| Apr 22, 2026 | 90.08% (0.90078) | 99.59th | v4 (v2025.03.14) |
| Nov 21, 2025 | 91.11% (0.91113) | 99.62th | v4 (v2025.03.14) |
| Nov 18, 2025 | 87.42% (0.87418) | 99.55th | v4 (v2025.03.14) |
| Jun 15, 2025 | 90.75% (0.90748) | 99.59th | v4 (v2025.03.14) |
| Mar 17, 2025 | 92.85% (0.92851) | 99.76th | v4 (v2025.03.14) |
| Jan 27, 2025 | 96.30% (0.96301) | 99.69th | v3 (v2023.03.01) |
| Dec 12, 2024 | 97.40% (0.97401) | 99.95th | v3 (v2023.03.01) |
| Sep 19, 2023 | 97.38% (0.97378) | 99.86th | v3 (v2023.03.01) |
| Mar 7, 2023 | 96.95% (0.96953) | 99.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 12.81% (0.12806) | 95.59th | v2 (v2022.01.01) |
| Apr 1, 2022 | 12.81% (0.12806) | 95.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 12.81% (0.12806) | 90.13th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.20% (0.03197) | 66.46th | v1 |
| Jan 6, 2022 | 3.20% (0.03197) | 66.14th | v1 |
| Sep 1, 2021 | 3.20% (0.03197) | 81.43th | v1 |
| Apr 14, 2021 | 3.20% (0.03197) | 0.00th | v1 |
References (2)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6884 government-resourceUS Government Resource
- https://www.exploit-db.com/exploits/41782/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6884 | government-resourceUS Government Resource | |
| https://www.exploit-db.com/exploits/41782/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (6)
- CISA ADP
- SSVC technical impact changed from partial to
total partial → total
- SSVC technical impact changed from partial to
total
- CISA ADP
- SSVC technical impact changed from total to
partial total → partial
- SSVC technical impact changed from total to
partial
- CISA ADP
- SSVC technical impact changed from partial to
total partial → total
- SSVC technical impact changed from partial to
total
- CISA ADP
- SSVC technical impact changed from total to
partial total → partial
- SSVC technical impact changed from total to
partial
- CISA ADP
- SSVC technical impact changed from partial to
total partial → total
- SSVC technical impact changed from partial to
total
- CISA ADP
- SSVC technical impact changed from total to
partial total → partial
- SSVC technical impact changed from total to
partial