CVE-2026-1548

2.1 lowEPSS 3.4%

Low (2.1) in totolink a7000r firmware. EPSS 3.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

2.1 low

CVSS: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

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 3.4% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
CWEs: CWE-77, CWE-74
Published: 2026-01-28
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

totolink:a7000r_firmware

References

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

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