CVE-2026-1548 | THREATINT

Description

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.

PUBLISHED Reserved 2026-01-28 | Published 2026-01-28 | Updated 2026-02-23 | Assigner VulDB

MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

MEDIUM: 6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

MEDIUM: 6.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Command Injection

Injection

Product status

4.1cu.4154

affected

Timeline

2026-01-28:	Advisory disclosed
2026-01-28:	VulDB entry created
2026-02-09:	VulDB entry last update

Credits

xuanyu (VulDB User) reporter

References

github.com/...000R/02_RCE_CloudACMunualUpdateUserdata_RCE.md exploit

vuldb.com/?id.343232 (VDB-343232 | Totolink A7000R cstecgi.cgi CloudACMunualUpdateUserdata command injection) vdb-entry technical-description

vuldb.com/?ctiid.343232 (VDB-343232 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.739715 (Submit #739715 | TOTOLINK A7000R V4.1cu.4154 Command Injection) third-party-advisory

github.com/...000R/02_RCE_CloudACMunualUpdateUserdata_RCE.md exploit patch

www.totolink.net/ product

cve.org (CVE-2026-1548)

nvd.nist.gov (CVE-2026-1548)

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