CVE-2026-19847

TOTOLINK A800R wps.so cstecgi.cgi setWiFiWpsConfig stack-based overflow

HIGH
8.8
CVSS Score
Published: August 14, 2026 at 05:30 PM UTC
Updated: August 18, 2026 at 02:17 AM UTC
2 products affected across 1 vendorA800R FirmwareA800R

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Severity
HIGH8.8
Exploit prediction
EPSS 0.9%
SSVC
PoC

Description

A security flaw has been discovered in TOTOLINK A800R 4.1.2cu.5137_B20200730. Affected is the function setWiFiWpsConfig of the file /cgi-bin/cstecgi.cgi of the component wps.so. The manipulation of the argument pin results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/389983
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/389983/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-19847
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/869457
Product
Source: cverecord
https://www.totolink.net/

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-121CWE-119

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