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CVE-2026-7748

Totolink N300RH POST Request cstecgi.cgi setUpgradeFW buffer overflow

Published: May 4, 2026Updated: May 4, 2026 Sources: CVE List NVD BDUCWE-119
8.8HIGH
NVD MITRE
EPSS Score
0.5%
Top 63.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A weakness has been identified in Totolink N300RH 3.2.4-B20220812. Affected by this issue is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument FileName can lead to buffer overflow. The attack can be launched 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: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
Open in CVSS calculator →

Weaknesses

CWE-119CWE-120

Affected Products

Totolink
commercial·TWaka totolink corp.
N300RH
Networking Infrastructure
and 1 more affected products View all →

Exploitability

Official Patch Available
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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/vuln/360923
vuldb.com
https://vuldb.com/vuln/360923/cti
vuldb.com
https://vuldb.com/submit/807202
vuldb.com
and 4 more references View all →
News mentions
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