CVE-2026-19845

TOTOLINK A800R lan.so cstecgi.cgi setStaticDhcpConfig stack-based overflow

HIGH
8.8
CVSS Score
Published: August 14, 2026 at 05:00 PM UTC
Updated: August 14, 2026 at 07:26 PM UTC
2 products affected across 1 vendorA800R FirmwareA800R

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Severity
HIGH8.8
Exploit prediction
EPSS 0.9%
SSVC
PoC

Description

A vulnerability was determined in TOTOLINK A800R 4.1.2cu.5137_B20200730. This affects the function setStaticDhcpConfig of the file /cgi-bin/cstecgi.cgi of the component lan.so. Executing a manipulation of the argument Comment can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized.

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/389981
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/389981/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-19845
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/869454
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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