High severity · published Jun 8, 2026
CVE-2026-11553
Tenda HG7/HG9/HG10 formPPPEdit stack-based overflow
8.8
CVSS
0.5%
EPSS
No
On KEV
Description
A vulnerability was found in Tenda HG7, HG9 and HG10 300001138_en_xpon. This affects the function formPPPEdit of the file /boaform/formPPPEdit. The manipulation of the argument encodename results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been made public and could 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)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HG
HG10 · Tenda
300001138_en_xpon · source: vendor
HG
HG7 · Tenda
300001138_en_xpon · source: vendor
HG
HG9 · Tenda
300001138_en_xpon · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-11553
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-11553
vdb-entry
https://vuldb.com/vuln/369163
signature
https://vuldb.com/vuln/369163/cti
third-party-advisory
https://vuldb.com/cve/CVE-2026-11553
third-party-advisory
https://vuldb.com/submit/836778
related
https://github.com/xiezhihua-1127/Tenda-Stack-Overflow.git
exploit
https://github.com/xiezhihua-1127/Tenda-Stack-Overflow/blob/main/report.md
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