CVE-2026-11498: Tenda HG7/HG9/HG10 Web Management voip_other_set asp_voip_OtherSet stack-based overflow

Vulnerability summary

CVE-2026-11498 is a high (CVSS 9.0) vulnerability in tenda hg10_firmware. EPSS estimates a 3.80% chance of exploitation in the next 30 days, higher than 89.9% of scored vulnerabilities.

Timeline

1. 08-06-2026
   PublishedVulnerability first disclosed.
2. 02-10-2026
   Last modifiedVulnerability information updated.

Description

A vulnerability was found in Tenda HG7, HG9 and HG10 300001138_en_xpon. Affected by this issue is the function asp_voip_OtherSet of the file /boaform/voip_other_set of the component Web Management Interface. Performing a manipulation of the argument funckey_transfer results in stack-based buffer overflow. The attack is possible to be carried out remotely.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
• CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).