Totolink A8000RU CGI cstecgi.cgi setRadvdCfg os command injection
Published Apr 28, 2026
9.3
CRITICALCVSS 4.0
EPSS 3.25%
Description
A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function setRadvdCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument maxRtrAdvInterval leads to os command injection. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
Affected products
-
- Version 7.1cu.643_b20200521StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| TOTOLINK | n/a | 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:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
1 other source (NVD) ▾
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:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
1 other source (NVD) ▾
AV:N/AC:L/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Apr 28, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
Score over time
Apr-Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 3.25% (0.03253) | 87.94th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.45% (0.02448) | 82.19th | v5 (v2026.06.15) |
| Apr 28, 2026 | 0.89% (0.00892) | 75.63th | v4 (v2025.03.14) |
References (5)
- https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_327/README.md exploit
- https://vuldb.com/submit/803266 third-party-advisory
- https://vuldb.com/vuln/359850 vdb-entrytechnical-description
- https://vuldb.com/vuln/359850/cti signaturepermissions-required
- https://www.totolink.net/ product
| Link | Providers | Tags |
|---|---|---|
| https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_327/README.md | exploit | |
| https://vuldb.com/submit/803266 | third-party-advisory | |
| https://vuldb.com/vuln/359850 | vdb-entrytechnical-description | |
| https://vuldb.com/vuln/359850/cti | signaturepermissions-required | |
| https://www.totolink.net/ | product |
Change history (0)
No recorded changes yet.