High severity · published Feb 22, 2026
CVE-2026-2910
Tenda HG9 formPing6 stack-based overflow
8.8
CVSS
3%
EPSS
No
On KEV
Description
A flaw has been found in Tenda HG9 300001138. This vulnerability affects unknown code of the file /boaform/formPing6. Executing a manipulation of the argument pingAddr can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been published and may be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.0% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HG
HG9 · Tenda
300001138 · source: vendor
HF
Hg9 Firmware · Tenda
300001138 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2910
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2910
Exploit
https://github.com/QIU-DIE/cve-nneeww/issues/12
Permissions Required
https://vuldb.com/?ctiid.347219
Third Party Advisory
https://vuldb.com/?id.347219
Third Party Advisory
https://vuldb.com/?submit.755212
Product
https://www.tenda.com.cn/
More from HG9
10.0
CVE-2026-104610
Tenda HG7/HG9/HG10 Boa Web Server formLoopBack boaGetVar stack-based overflow
9.8
CVE-2026-11499
Tenda HG7/HG9/HG10 formDOMAINBLK stack-based overflow
8.8
CVE-2026-11553
Tenda HG7/HG9/HG10 formPPPEdit stack-based overflow
8.8
CVE-2026-11498
Tenda HG7/HG9/HG10 Web Management voip_other_set asp_voip_OtherSet stack-based overflow
8.8
CVE-2026-2909
Tenda HG9 Diagnostic Ping Endpoint formPing stack-based overflow