Tenda F456 httpd VirtualSer fromVirtualSer buffer overflow
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
A security vulnerability has been detected in Tenda F456 1.0.0.5. This issue affects the function fromVirtualSer of the file /goform/VirtualSer of the component httpd. The manipulation of the argument menufacturer/Go leads to buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Tenda | F456 | 1.0.0.5 | — | No fix listed | CNA |
- F456 VendorTenda Affected 1.0.0.5 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-7055
- 2026-10-03 Alias added: GHSA-rqx8-m6g2-g4gx
References
More Tenda F456 Firmware vulnerabilities
- TI-2026-06225 Tenda F456 httpd WrlclientSet fromWrlclientSet buffer overflow CVSS 4.0HIGH 8.7
- TI-2026-06224 Tenda F456 httpd Natlimit fromNatlimitof buffer overflow CVSS 4.0HIGH 8.7
- TI-2026-06223 Tenda F456 httpd QuickIndex formQuickIndex buffer overflow CVSS 4.0HIGH 8.7
- TI-2026-06222 Tenda F456 httpd DhcpListClient fromDhcpListClient buffer overflow CVSS 4.0HIGH 8.7
- TI-2026-06221 Tenda F456 httpd webExcptypemanFilter fromwebExcptypemanFilter buffer overflow CVSS 4.0HIGH 8.7
- TI-2026-06206 Tenda F456 httpd WrlExtraSet formWrlExtraSet buffer overflow CVSS 4.0HIGH 8.7
Sources
- CVE-2026-7055 · CVE Program
- CVE-2026-7055 · NVD
- FIRST EPSS
- GHSA-rqx8-m6g2-g4gx · GitHub Advisory Database · CC BY 4.0
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