Tenda AC21/AC23 GetParentControlInfo stack-based overflow
Priority HIGH 75CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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 AC21 and AC23 16.03.08.16. Affected is the function GetParentControlInfo of the file /goform/GetParentControlInfo. Such manipulation of the argument mac leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.05962 93rd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD and the CNA
Fix No fix listed No fixed version in the sources yet
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 | AC21 | 16.03.08.16 | — | No fix listed | CNA |
| Tenda | AC23 | 16.03.08.16 | — | No fix listed | CNA |
- AC21 VendorTenda Affected 16.03.08.16 Fixed in — No fix listed CNA
- AC23 VendorTenda Affected 16.03.08.16 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:tenda:ac21_firmware:16.03.08.16:*:*:*:*:*:*:* | 16.03.08.16 | Vulnerable | Tenda |
| cpe:2.3:h:tenda:ac21:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Tenda |
| cpe:2.3:o:tenda:ac23_firmware:16.03.08.16:*:*:*:*:*:*:* | 16.03.08.16 | Vulnerable | Tenda |
| cpe:2.3:h:tenda:ac23:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Tenda |
- cpe:2.3:o:tenda:ac21_firmware:16.03.08.16:*:*:*:*:*:*:* Versions 16.03.08.16 Vulnerable ·Tenda
- cpe:2.3:h:tenda:ac21:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tenda
- cpe:2.3:o:tenda:ac23_firmware:16.03.08.16:*:*:*:*:*:*:* Versions 16.03.08.16 Vulnerable ·Tenda
- cpe:2.3:h:tenda:ac23:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tenda
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-9605
- 2026-10-03 Alias added: GHSA-f8m7-hvrf-gm4v
References
More Tenda Ac21 Firmware vulnerabilities
- TI-2026-01322 Tenda AC21 AdvSetMacMtuWan fromAdvSetMacMtuWan stack-based overflow CVSS 4.0HIGH 8.7
- TI-2025-12293 Tenda AC21 SetSysTimeCfg stack-based overflow CVSS 4.0HIGH 8.7
- TI-2025-12292 Tenda AC21 SetIpMacBind stack-based overflow CVSS 4.0HIGH 8.7
- TI-2025-11565 Tenda AC21 SetPptpServerCfg formSetPPTPServer buffer overflow CVSS 4.0HIGH 8.7
- TI-2025-10159 Tenda AC21 SetStaticRouteCfg sscanf buffer overflow CVSS 4.0HIGH 8.7
- TI-2023-09979 A stack overflow vulnerability in Tenda AC21 with firmware version… CVSS 3.1HIGH 8.8
Sources
- CVE-2025-9605 · CVE Program
- CVE-2025-9605 · NVD
- FIRST EPSS
- GHSA-f8m7-hvrf-gm4v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences