Totolink A8000RU Web Management cstecgi.cgi setDdnsCfg os command injection
Published May 24, 2026
9.3
CRITICALCVSS 4.0
EPSS 3.25%
Description
A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Such manipulation of the argument provider leads to os command injection. The attack may be launched 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 May 29, 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
May–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (5 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 3.25% (0.03253) | 87.94th | v5 (v2026.06.15) |
| Oct 1, 2026 | 3.25% (0.03253) | 87.92th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.73% (0.01732) | 76.61th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.91% (0.01909) | 77.03th | v5 (v2026.06.15) |
| May 25, 2026 | 0.89% (0.00892) | 75.83th | v4 (v2025.03.14) |
References (5)
- https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_336/README.md exploit
- https://vuldb.com/submit/813439 third-party-advisory
- https://vuldb.com/vuln/365385 vdb-entrytechnical-description
- https://vuldb.com/vuln/365385/cti signaturepermissions-required
- https://www.totolink.net/ product
| Link | Providers | Tags |
|---|---|---|
| https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_336/README.md | exploit | |
| https://vuldb.com/submit/813439 | third-party-advisory | |
| https://vuldb.com/vuln/365385 | vdb-entrytechnical-description | |
| https://vuldb.com/vuln/365385/cti | signaturepermissions-required | |
| https://www.totolink.net/ | product |
Change history (0)
No recorded changes yet.