CVE-2026-1623

6.3 MEDIUM
Published: January 29, 2026 Modified: February 10, 2026
View on NVD

Description

A weakness has been identified in Totolink A7000R 4.1cu.4154. Impacted is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument FileName causes command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/04_RCE_setUpgradeFW_RCE.md
Source: cna@vuldb.com
Exploit Third Party Advisory
https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/04_RCE_setUpgradeFW_RCE.md#poc
Source: cna@vuldb.com
Exploit
https://vuldb.com/?ctiid.343382
Source: cna@vuldb.com
Permissions Required VDB Entry
https://vuldb.com/?id.343382
Source: cna@vuldb.com
Third Party Advisory VDB Entry
https://vuldb.com/?submit.740767
Source: cna@vuldb.com
Third Party Advisory VDB Entry
https://www.totolink.net/
Source: cna@vuldb.com
Product

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.3 / 10.0
EPSS (Exploit Probability)
2.1%
84th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-74 CWE-77

Affected Vendors

totolink

Related CVEs

CVE-2026-4558 8.8
CVE-2026-4557 4.3
CVE-2026-4555 8.8
CVE-2026-4554 6.3
CVE-2026-33319 5.9