TRENDnet TEW-821DAP ssi ping.cgi system command injection
Published Aug 19, 2026
5.3
MEDIUMCVSS 4.0
EPSS 1.77%
Description
A vulnerability was determined in TRENDnet TEW-821DAP 2.2.01b05. Affected is the function popen/system of the file /cgi-bin/ping.cgi of the component ssi. Executing a manipulation of the argument ipaddr can lead to command injection. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized.
Affected products
-
- Version 2.2.01b05StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| TRENDnet | Tew-821dap | n/a |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:P/RL:X/RC:R
1 other source (NVD) ▾
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:P/RL:X/RC:R
AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
1 other source (NVD) ▾
AV:N/AC:L/Au:S/C:P/I:P/A:P
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Aug 21, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
Aug–Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.77% (0.01768) | 77.32th | v5 (v2026.06.15) |
| Aug 20, 2026 | 1.28% (0.01282) | 67.81th | v5 (v2026.06.15) |
References (5)
- https://github.com/meishigana/CVE/tree/main/team15_20260702/06_821dap-ssi-remote-cmdi exploit
- https://vuldb.com/cve/CVE-2026-76582 third-party-advisory
- https://vuldb.com/submit/877791 third-party-advisory
- https://vuldb.com/vuln/393041 vdb-entrytechnical-description
- https://vuldb.com/vuln/393041/cti signaturepermissions-required
| Link | Providers | Tags |
|---|---|---|
| https://github.com/meishigana/CVE/tree/main/team15_20260702/06_821dap-ssi-remote-cmdi | exploit | |
| https://vuldb.com/cve/CVE-2026-76582 | third-party-advisory | |
| https://vuldb.com/submit/877791 | third-party-advisory | |
| https://vuldb.com/vuln/393041 | vdb-entrytechnical-description | |
| https://vuldb.com/vuln/393041/cti | signaturepermissions-required |
Change history (0)
No recorded changes yet.