CVE-2026-104610: Tenda HG7/HG9/HG10 Boa Web Server formLoopBack boaGetVar stack-based overflow

Is it exploited?

Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of 28 Oct 2026. If CISA adds it, this page shows it as known exploited.

How likely is exploitation in the next 30 days?

0.6%

EPSS score, percentile 50.8 of all scored records. A probability estimated by FIRST, not a report of exploitation.

CISA's SSVC assessment in the CVE record lists exploitation as poc.

How severe?

10.0 Critical

CVSS v4.0 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

• 300001138_en_xpon
• 300001138_en_xpon
• 300001138_en_xpon

Versions by product

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 29 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-29_0000Z, as of 29 Oct 2026. About the data.

What to do

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

Affected products and versions

As listed in the CVE record.

Source: CVE List V5 (CVE Program), cve_2026-10-29_0000Z, as of 29 Oct 2026. About the data.

About this vulnerability

A security vulnerability has been detected in Tenda HG7, HG9 and HG10 300001138_en_xpon. This impacts the function boaGetVar of the file /boaform/formLoopBack of the component Boa Web Server. Such manipulation of the argument Ethtype leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used.

Summary: CVE record, as of 29 Oct 2026.

• CISA has not added CVE-2026-104610 to its Known Exploited Vulnerabilities (KEV) catalog, as of 28 Oct 2026.
• The CVE record was published on 2 Oct 2026.
• The CVE record carries a CVSS v4.0 base score of 10.0 (Critical), given by its CNA.
• FIRST's EPSS model puts the probability of exploitation in the next 30 days at 0.6% (percentile 50.8), as of 29 Oct 2026. EPSS is a statistical estimate, not a report of exploitation.
• CISA's SSVC assessment in the CVE record: exploitation poc, automatable yes, technical impact total.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-29_0000Z, as of 29 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 29 Oct 2026. About the data.

Description

Tenda HG7/HG9/HG10 Boa Web Server formLoopBack boaGetVar stack-based overflow

A security vulnerability has been detected in Tenda HG7, HG9 and HG10 300001138_en_xpon. This impacts the function boaGetVar of the file /boaform/formLoopBack of the component Boa Web Server. Such manipulation of the argument Ethtype leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used.

Source: CVE List V5 (CVE Program), cve_2026-10-29_0000Z, as of 29 Oct 2026. About the data.

Weakness

• CWE-121
• CWE-119

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

References

• CVE-2026-104610 | CVE Analysis and Report (Third-party advisory)
• Submit #962541 | Tenda HG10 HG7_HG9_HG10re_300001138_en_xpon Stack-based Buffer Overflow (Third-party advisory)
• VDB-412917 | Tenda HG7/HG9/HG10 Boa Web Server formLoopBack boaGetVar stack-based overflow (Vulnerability database, Technical description)
• github.com (Exploit, Issue tracking)
• VDB-412917 | CTI Indicators (IOB, IOC, IOA)
• tenda.com.cn

Known exploited Tenda vulnerabilities

• CVE-2018-14558: Tenda AC7, AC9, and AC10 Routers Command Injection Vulnerability (added 3 Nov 2021)
• CVE-2020-10987: Tenda AC1900 Router AC15 Model Remote Code Execution Vulnerability (added 3 Nov 2021)
• CVE-2021-31755: Tenda AC11 Router Stack Buffer Overflow Vulnerability (added 3 Nov 2021)