CVE-2026-19844

TOTOLINK A800R ipv6.so cstecgi.cgi setRadvdCfg stack-based overflow

Published: Aug 14, 2026Updated: Aug 18, 2026 Sources: CVE List NVDCWE-119

8.8HIGH

Description

A vulnerability was found in TOTOLINK A800R 4.1.2cu.5137_B20200730. The impacted element is the function setRadvdCfg of the file /cgi-bin/cstecgi.cgi of the component ipv6.so. Performing a manipulation of the argument radvdinterfacename results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made public and could be used.

No summary for this CVE yet.

CVSS Vector Breakdown

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

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Weaknesses

CWE-119 CWE-121

Affected Products

TOTOLINK

commercial·TWaka totolink corp.

A800R

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

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References

https://github.com/panda666-888/vuls/blob/main/totolink/a800r/setRadvdCfg.md

github.com

https://vuldb.com/cve/CVE-2026-19844

vuldb.com

https://vuldb.com/submit/869443

vuldb.com

and 3 more references View all →

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