Buffer Overflow Vulnerability in Tenda HG10 Series Routers
CVE-2026-6988

8.7HIGH

Key Information:

Vendor

Tenda
Status
Hg10
Vendor
CVE Published:
25 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-6988?

A critical security flaw exists in the Boa Service within Tenda HG10 and related router models, specifically in the formRoute function of the /boaform/formRouting file. This vulnerability allows an attacker to manipulate the nextHop argument, leading to a buffer overflow condition. If exploited, this flaw could be leveraged for remote code execution, posing significant risks to the integrity and confidentiality of the affected devices. Users are advised to apply protective measures to mitigate the potential risks associated with this vulnerability.

Affected Version(s)

HG10 HG7_HG9_HG10re_300001138_en_xpon

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-6988 - Proof of Concept

References

https://vuldb.com/vuln/359540
vdb-entrytechnical-description
https://vuldb.com/vuln/359540/cti
signaturepermissions-required
https://vuldb.com/submit/796427
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

xuanyu (VulDB User)
.