CVE-2026-9457

Totolink A8000RU Web Management cstecgi.cgi UploadFirmwareFile os command injection

CVSS 9.3 CRITICALEPSS 2.1%CWE-77 CWE-78

A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function UploadFirmwareFile of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. This manipulation of the argument FileName causes os command injection. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.

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

Affected products

Totolink · A8000RU

public PoCs found — 1

cve_referencegithub.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_343/README.mdunverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References

https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_343/README.md https://vuldb.com/submit/813454 https://vuldb.com/vuln/365438 https://vuldb.com/vuln/365438/cti https://www.totolink.net/