CVE-2026-1548

MEDIUM 6.3

Totolink A7000R cstecgi.cgi CloudACMunualUpdateUserdata command injection

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

A flaw has been found in Totolink A7000R 4.1cu.4154. This impacts the function CloudACMunualUpdateUserdata of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument url causes command injection. The attack can be initiated remotely. The exploit has been published and may be used.

CWE	CWE-77 CWE-74
Vendor	totolink
Product	a7000r
Published	Jan 28, 2026
Last Updated	Feb 23, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / A7000R

4.1cu.4154

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.343232 vuldb.com: https://vuldb.com/?ctiid.343232 vuldb.com: https://vuldb.com/?submit.739715 github.com: https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/02_RCE_CloudACMunualUpdateUserdata_RCE.md github.com: https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/02_RCE_CloudACMunualUpdateUserdata_RCE.md#poc totolink.net: https://www.totolink.net/

Credits

🔍 xuanyu (VulDB User)