CVE-2026-9387

critical

Published 2026-05-24 · Modified 2026-05-26

CVSS v3

9.8

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

CVSS v2

10.0

VIR risk

9.8

Description

A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Performing a manipulation of the argument resetFlags results in os command injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks.

Predictions

Exploit likelihood

97%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

References

https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_334/README.md
https://vuldb.com/submit/813433
https://vuldb.com/vuln/365350
https://vuldb.com/vuln/365350/cti
https://www.totolink.net/

CWEs

CWE-77 CWE-78

Verify integrity in audit chain (admin only). AS-IS.