CVE-2026-7243

critical

Published 2026-04-28 · Modified 2026-04-28

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 vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function setRadvdCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument maxRtrAdvInterval leads to os command injection. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.

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_327/README.md
https://vuldb.com/submit/803266
https://vuldb.com/vuln/359850
https://vuldb.com/vuln/359850/cti
https://www.totolink.net/

CWEs

CWE-77 CWE-78

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