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CVE-2026-4254

Tenda AC8 HTTP Endpoint SysToolChangePwd doSystemCmd stack-based overflow

Published: Mar 16, 2026Updated: Mar 20, 2026 Sources: CVE List NVDCWE-119
9.8CRITICAL
NVD MITRE
EPSS Score
0.9%
Top 44.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

A weakness has been identified in Tenda AC8 up to 16.03.50.11. This vulnerability affects the function doSystemCmd of the file /goform/SysToolChangePwd of the component HTTP Endpoint. This manipulation of the argument local_2c causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.

No summary for this CVE yet.

CVSS Vector Breakdown

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

CWE-119CWE-121CWE-787

Affected Products

Tenda
commercial·CN
AC8
Networking Infrastructure
ac8 firmware
Networking Infrastructure

Exploitability

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

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://vuldb.com/?id.351212
vuldb.com
https://vuldb.com/?ctiid.351212
vuldb.com
https://vuldb.com/?submit.771773
vuldb.com
and 2 more references View all →

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