PatchSiren cyber security CVE debrief
CVE-2026-13516 Tenda CVE debrief
CVE-2026-13516 is a stack-based buffer overflow vulnerability detected in Tenda JD12L 16.03.53.23. The affected element is the function fromSetWifiGusetBasic of the file /goform/WifiGuestSet. Performing a manipulation of the argument shareSpeed results in the vulnerability. The attack may be initiated remotely. The exploit is now public and may be used. This vulnerability has a CVSS score of 7.4 and a severity of HIGH.
- Vendor
- Tenda
- Product
- JD12L
- CVSS
- HIGH 7.4
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-29
- Original CVE updated
- 2026-06-29
- Advisory published
- 2026-06-29
- Advisory updated
- 2026-06-29
Who should care
Security teams and administrators responsible for Tenda JD12L 16.03.53.23 devices should be aware of this vulnerability. The vulnerability's remote attack vector and public exploit availability make it a priority for patching. Organizations using affected devices should assess their inventory and apply patches or mitigations.
Technical summary
The vulnerability is a stack-based buffer overflow in the fromSetWifiGusetBasic function of /goform/WifiGuestSet in Tenda JD12L 16.03.53.23. The vulnerability is triggered by manipulating the shareSpeed argument. The CVSS:4.0 vector is AV:N/AC:L/AT:N/PR:L/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. The weakness is primarily classified as CWE-119 and CWE-121.
Defensive priority
High priority due to remote attack vector and public exploit availability. Apply patches or mitigations as soon as possible.
Recommended defensive actions
- Apply patches or updates provided by the vendor.
- Conduct a thorough inventory of affected devices.
- Implement compensating controls, such as network segmentation or access restrictions.
- Monitor for suspicious activity related to the vulnerability.
- Consider vulnerability scanning to identify exposed devices.
Evidence notes
The CVE record and NVD detail provide official information about the vulnerability. Additional sources, including Vuldb and GitHub, offer further context and potential exploit details. However, due to the limited information available, defenders should focus on patching and inventory management.
Official resources
This article is AI-assisted and based on the supplied source corpus.