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CVE-2026-11523

Tenda W20E Web Management PortalAuth formPortalAuth stack-based overflow

Published: Jun 8, 2026Updated: Jun 9, 2026 Sources: CVE List NVD
NVD MITRE
8.8CVSS
HIGH

A flaw has been found in Tenda W20E 15.11.0.6. This issue affects the function formPortalAuth of the file /goform/PortalAuth of the component Web Management Interface. Executing a manipulation of the argument gotoUrl can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been published and may be used.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High

Weaknesses

CWE-119CWE-121

Affected Products

W20E
Tenda

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://vuldb.com/vuln/369143
vuldb.com
https://vuldb.com/vuln/369143/cti
vuldb.com
https://vuldb.com/cve/CVE-2026-11523
vuldb.com
and 3 more references View all →

Timeline

Published
Jun 8, 2026
Last Updated
Jun 9, 2026

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